For the number 2010, I would expect people to say "two thousand (and) ten" when referring to an amount of something.
If 2010 is a year or a house number, for example, you might also hear "twenty ten".
I would say that the word
hundred is used instead of
thousand only when the number is less than two thousand, and particularly when the number ends with '00'. For example:
1910 = one thousand nine hundred (and) ten -OR- nineteen ten -OR- nineteen hundred (and) ten
1400 = one thousand four hundred -OR- fourteen hundred