12122012211012 has 72 divisors (see below), whose sum is σ = 33511567357632. Its totient is φ = 3664084248000.

The previous prime is 12122012210983. The next prime is 12122012211061. The reversal of 12122012211012 is 21011221022121.

12122012211012 is a `hidden beast` number, since 121 + 220 + 1 + 221 + 101 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38395864 + ... + 38710287.

Almost surely, 2^{12122012211012} is an apocalyptic number.

12122012211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122012211012 is an abundant number, since it is smaller than the sum of its proper divisors (21389555146620).

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

12122012211012 is a wasteful number, since it uses less digits than its factorization.

12122012211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77106569 (or 77106564 counting only the distinct ones).

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

Adding to 12122012211012 its reverse (21011221022121), we get a palindrome (33133233233133).

The spelling of 12122012211012 in words is "twelve trillion, one hundred twenty-two billion, twelve million, two hundred eleven thousand, twelve".