This is an approximation since the hands are not independent. These numbers come from 221*221/(N-1), where N is the number of players. If it's a heads up game, the odds are 1 in 48841 hands. The odds of running KK into AA depend completely on the number of opponents at the table. You've been dealt a few less than normal, but nothing too unusual there. The odds of getting dealt KK are 1 in 221.
