12122211210012 has 24 divisors (see below), whose sum is σ = 31427954989200. Its totient is φ = 4040737069968.

The previous prime is 12122211209921. The next prime is 12122211210049. The reversal of 12122211210012 is 21001211222121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent 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, 56121348087 + ... + 56121348302.

It is an arithmetic number, because the mean of its divisors is an integer number (1309498124550).

Almost surely, 2^{12122211210012} is an apocalyptic number.

12122211210012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122211210012 is an abundant number, since it is smaller than the sum of its proper divisors (19305743779188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122211210012 is a wasteful number, since it uses less digits than its factorization.

12122211210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112242696402 (or 112242696394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12122211210012 its reverse (21001211222121), we get a palindrome (33123422432133).

The spelling of 12122211210012 in words is "twelve trillion, one hundred twenty-two billion, two hundred eleven million, two hundred ten thousand, twelve".