Fatto generale: 20121 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 20121 is an unremarkable number.
Trivia: 20121 is a boring number.
Data storica: February 1st is the day in 2009 that Jóhanna Sigurðardóttir is chosen the first female Prime Minister of Iceland, becoming the first openly gay head of government in the modern world.