A big chunk of centenarians (43 percent) never finished high school. A plurality of Baby Boomers (34 percent) did.

The health insurance company United Healthcare recently surveyed 104 centenarians (and 302 Boomers ages 65 and older) to probe a little more deeply. The small sample of 100-year-0lds is less than ideal, but there's some interesting info here. For example, only 3 percent said they were lonely, sad or burdened.

They remember their 30s most fondly ...

Feel like they're only 83 ...

Would most like to have dinner with President Obama. ( Boomers name Betty White !?!) ...

And, remarkably, don't have daily caregivers.

Update: A 2012 Census report says that 35.2 percent of women centenarians and 18.2 percent of men live in nursing homes.

They've heard of Facebook and Twitter, but not Pinterest:

Feel they've accomplished what they wanted to.