Satellite question, far from the bubble

[OrrLives]

I was playing in a satellite in which ~1/3 of the players win a seat.

35 players win a seat, 55 players left (20 to go before the satellite is over). Starting chips are 1000.

blinds: 75/150

Hero is in BB with 750 (600 after posting BB). Hero is dealt 22.
Folds to a very LAG CO who raises to 450, everyone else folds, hero?
The CO's range is huge here... I am almost certainly 50/50.

I pushed thinking that I was too far from the bubble to fold.

If you say I should push in this situation, how many players would have to be left before folding is correct? How many chips would I need to make folding correct (assuming CO has me covered)?

If you say I should fold, how many players would have to be left in order to push?