12122211100012 has 24 divisors (see below), whose sum is σ = 22845843989136. Its totient is φ = 5594832754368.

The previous prime is 12122211100007. The next prime is 12122211100049. The reversal of 12122211100012 is 21000111222121.

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 7 ways as a sum of consecutive naturals, for example, 9308658 + ... + 10530694.

It is an arithmetic number, because the mean of its divisors is an integer number (951910166214).

Almost surely, 2^{12122211100012} is an apocalyptic number.

It is an amenable number.

12122211100012 is a deficient number, since it is larger than the sum of its proper divisors (10723632889124).

12122211100012 is a wasteful number, since it uses less digits than its factorization.

12122211100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412817 (or 1412815 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12122211100012 its reverse (21000111222121), we get a palindrome (33122322322133).

The spelling of 12122211100012 in words is "twelve trillion, one hundred twenty-two billion, two hundred eleven million, one hundred thousand, twelve".