There are eight or nine terminals depending on whether you count T8 as a separate terminal since it doesn't have a landside area (1-7 or 1-8 and then TBIT). However, there aren't 225 gates. Gates 87-129, some of the 140-147 range, 158, and 160-200 are unused. But then you have ones like 72A and 72B counting as two separate gates. All told I think 150ish is a more accurate number.