12122111200012 has 48 divisors (see below), whose sum is σ = 24508819383552. Its totient is φ = 5191819174080.

The previous prime is 12122111199997. The next prime is 12122111200037. The reversal of 12122111200012 is 21000211122121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89323023 + ... + 89458630.

It is an arithmetic number, because the mean of its divisors is an integer number (510600403824).

Almost surely, 2^{12122111200012} is an apocalyptic number.

It is an amenable number.

12122111200012 is an abundant number, since it is smaller than the sum of its proper divisors (12386708183540).

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

12122111200012 is a wasteful number, since it uses less digits than its factorization.

12122111200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178781758 (or 178781756 counting only the distinct ones).

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

Adding to 12122111200012 its reverse (21000211122121), we get a palindrome (33122322322133).

The spelling of 12122111200012 in words is "twelve trillion, one hundred twenty-two billion, one hundred eleven million, two hundred thousand, twelve".