The sky isn’t the limit for only Odell Beckham Jr.

Landon Collins has emerged as the other bright, young shining star in the Big Blue constellation.

You will find them on any and every 25-under-25 NFL list, Beckham at or near the top, and Collins continuing a stunning, meteoric rise.

So who’s Batman and who’s Robin?

“I’m Batman, and he’s Robin,” Collins told The Post.

I tell Collins that Beckham would not like being Robin.

“I gotta take all the blows, so I think I should be Batman,” Collins said and smiled.

If Beckham is the gazelle, Collins is the lion inside the 100-yard jungle, hungry for anyone with the ball, and a legitimate Defensive Player of the Year candidate.

If all goes well, they will be the twin faces of the Giants long after Eli Manning is gone.

Although Collins lacks Beckham’s celebrity and Q score, he suddenly finds himself having to wink at the unblinking glare of the public eye.

“It’s been getting crazy,” Collins said. “We actually went to [Eli Apple’s] birthday party last night. About six, seven people recognized me. I had to stop and take pictures and stuff like that. So I said, ‘Look like I gotta start wearing hats again.’ ”

Collins, who is so pleasant and so comfortable in his own skin, smiles.

“Back in Alabama, I had to wear hats,” he said. “Couldn’t go nowhere. I stopped going to the mall back in Alabama. It was kind of difficult back then. It’s getting to that point, especially with the hairdo. It’s definitely eye-catching.”

He has worn his hair like this for a year.

“Just straight back braids, with little zigzags between it with a little white and blue,” Collins said.

He’ll figure it out. Collins figures everything out.

“I haven’t lost privacy yet,” he said. “I mean, I don’t have people in front of my house and stuff like that, so that’s a good thing.

“I was actually driving … so I gotta keep my windows up now though, too. I like to ride with my windows down. I have to keep my windows up now because people recognize me. A car was actually trailing me and actually pulled up on side of me telling me, ‘Great game,’ and stuff like that. So now gotta change the whole game around.”

He will do it as effortlessly as he plays safety.

“Stardom’s pretty easy to handle,” Collins said. “All I think about is playing ball, regardless of the stardom or where it comes from or how people view it. It really doesn’t bother me.”

It helps that he has been the center of attention since high school.

“It’s second nature to me, I would say,” Collins said.

It’s second nature to Beckham, who elicits shrieks whenever he makes one-handed TD catches in practice or dances to Ben McAdoo’s funky playlist or looks up at the fans and waves.

“The cameras are always on him, so you’re gonna catch every glimpse of what he does,” Collins said.

The two of them play with the kind of passion and unbridled joy Lawrence Taylor did.

Asked how much damage the two of them can do together, Collins said: “Whoooo … it’s a lot. It’s definitely a lot.”

He has never seen a receiver like Beckham.

“The closest one I would compare with would be Amari Cooper,” Collins said.

Collins is driven by the 10 men on the field with him.

“It’s a brotherhood to me, it’s a family to me,” Collins said. “I feel like if I’m not doing what I’m supposed to be doing, I’m letting ’em down, so my drive is for my brothers on the field that I’m playing with.”

He still carries the chip on his shoulder from not being drafted in the first round of the 2015 draft.

“Every day, yup,” Collins said.

Because they labeled you a box safety?

“They labeled me a box safety,” Collins said, “and now, a lot of teams regret.”

Collins is living proof that you can be humble and yet expect to be great.

“I would say I expect to be great because I’ve been playing great since I was 4,” he said. “If I had the [cassette] tapes, I would show you myself, but the tapes were destroyed in Katrina. Since I was 4, every time I touched the ball, I scored. I was playing running back before I actually played safety. Every time I touched the field, it was nothing other than being the best player on the field. ‘Everybody remember that little kid, No. 5, you better watch out for him.’ ”

Now you better watch out for No. 21.

“I’m homegrown, I like to be inside, I like to just chill. … I don’t like to go to the city,” Collins said.

And yet, New York is the perfect place for him because it is the biggest and brightest stage.

“It’s prime time over here,” Collins said. “It’s prime time every week.”

For Batman and Robin of the New York Football Giants.