With more than two hours to spare, Michael Cohen arrived Monday at a federal penitentiary in upstate Otisville to begin serving his three-year prison sentence.

President Trump’s former lawyer and “fixer” left his Park Avenue residence at about 10 a.m. for the roughly two-hour drive to prison, where he’s being housed in a minimum-security camp.

Before he left his home, he took a parting shot at Trump by reporters and photographers that he still had more to tell and denounced “xenophobia, injustice and lies.”

Cohen, who had a 2 p.m. deadline to show up at Otisville, was originally scheduled to start his sentence in March, but a judge granted him a two-month delay so he could recover from surgery and get his affairs in order.

“There still remains much to be told, and I look forward to the day that I can share the truth,” he added before jumping into a Cadillac Escalade.

Several dozen bystanders stopped to snap pictures of Cohen, 52, the only person charged with a crime in connection with the hush-money payments to women who allegedly had affairs with Trump.

Fellow prison mates of Cohen — officially Inmate No. 86067-054 — include “Jersey Shore” star Mike “The Situation” Sorrentino, who is serving time for tax fraud, Fyre Festival fraudster Billy McFarland and former state Senate leader Dean Skelos, who is in for ­corruption.

Cohen is housed in dorm-like accommodations at Otisville, which prison consultants say has become a destination for Jewish inmates because it has a full-time rabbi and kosher cuisine.

“He’s going to what I like to refer to as ‘Jewish heaven,’ ” Larry Levine, founder of Wall Street Prison Consultants, who served a 10-year sentence for racketeering and other crimes.

With Post wires