You have enough in the pot to come against a random hand, especially since anyone who made something like (55)22 is likely to bet it. You are getting almost 7-3 odds if the 222 will pay off the river unimproved, or will bluff at the pot, and you are less than a 2-1 dog.

Plus when you miss, you don't have to pay off the river.

One of the ways you lose is when the 4th 2 hits on 6th, so you can fold at that point, unless you have a party and hit the 10.

It is 16-1 against him starting with a pocket pair, so it is extemely likely that is all he had.

A narrow decision, but correct to call.

The raise on 6th is questionable, as you picked up an extra bet on 6th, then gave it back by checking 7th. You get three bet when he's full on 6th, and unless you release there, it's going to cost you two extra bets with no upside.

Since you raised 6th, I'd bet 7th. He wasn't full on 6, and he is roughly 4-1 to fill or quad, and you are only laying 2-1 on the bet.

Interesting hand.