max 11 digits
info on number 21
2
12
121
21
21
badspider.jpg
the venom from the Brazilian wandering spider (Phoneutria) is so powerful that just 0.00000021 oz of it can kill a mouse
cocktails.png
in several countries 21 is the age of majority. It is also drinking age in all the US states
cribbage.jpg
121 points are required to win in an official game of cribbage
gayageum.jpg
the gayageum is a traditional Korean zither-like string instrument with 12 strings
janus.jpg
the ancient Roman god Janus had two faces, enabling him to look backward at the past and forward to the future at the same time
21 is a composite number equal to 3 ⋅ 7, a brilliant number, a Fibonacci number, a Harshad number,.... For further properties of 21, see numbersaplenty.com.
2
1212
12
12
1
evanovich.jpg
"One for the Money" by Janet Evanovich is the first novel in the fortunate series with the private detective Stephanie Plum
film
12 Angry Men is a 1957 film in which a juror attempts to prevent an injustice by forcing his colleagues to reconsider the evidence
moon.jpg
only twelve people have walked on the Moon
Jennifer Connelly
12/12 is the birthday of Jennifer Connelly, who appeared in "Requiem for a Dream". She is born in 1970
math
the famous and still unproved Goldbach Conjecture states that every even number greater than two is the sum of 2 prime numbers
try other numbers
4432745502707641290794
3368354278419416534
1250001062