Fatto generale: 22668 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 22668 is an uninteresting number.
Trivia: 22668 is an unremarkable number.
Data storica: January 22nd is the day in 1963 that the Elysée treaty of cooperation between France and Germany is signed by Charles de Gaulle and Konrad Adenauer.