22121202020012 has 24 divisors (see below), whose sum is σ = 38746878560880. Its totient is φ = 11050669488960.

The previous prime is 22121202019991. The next prime is 22121202020059. The reversal of 22121202020012 is 21002020212122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20637587 + ... + 21682997.

It is an arithmetic number, because the mean of its divisors is an integer number (1614453273370).

Almost surely, 2^{22121202020012} is an apocalyptic number.

It is an amenable number.

22121202020012 is a deficient number, since it is larger than the sum of its proper divisors (16625676540868).

22121202020012 is a wasteful number, since it uses less digits than its factorization.

22121202020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050161 (or 1050159 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22121202020012 its reverse (21002020212122), we get a palindrome (43123222232134).

The spelling of 22121202020012 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, twelve".