12111222215104 has 56 divisors (see below), whose sum is σ = 24809445936000. Its totient is φ = 5860038589440.

The previous prime is 12111222215089. The next prime is 12111222215129. The reversal of 12111222215104 is 40151222211121.

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, 57329382 + ... + 57540250.

Almost surely, 2^{12111222215104} is an apocalyptic number.

It is an amenable number.

12111222215104 is an abundant number, since it is smaller than the sum of its proper divisors (12698223720896).

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

12111222215104 is a wasteful number, since it uses less digits than its factorization.

12111222215104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239861 (or 239851 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

Adding to 12111222215104 its reverse (40151222211121), we get a palindrome (52262444426225).

The spelling of 12111222215104 in words is "twelve trillion, one hundred eleven billion, two hundred twenty-two million, two hundred fifteen thousand, one hundred four".