General fact: 72012 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 72012 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 72012 is an uninteresting number.
Historical date: February 28th is the day in 1939 that the erroneous word "dord" is discovered in the Webster's New International Dictionary, Second Edition, prompting an investigation.