12117220338522 has 32 divisors (see below), whose sum is σ = 26329589754048. Its totient is φ = 3695381012736.

The previous prime is 12117220338469. The next prime is 12117220338533. The reversal of 12117220338522 is 22583302271121.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 687376048 + ... + 687393675.

It is an arithmetic number, because the mean of its divisors is an integer number (822799679814).

Almost surely, 2^{12117220338522} is an apocalyptic number.

12117220338522 is an abundant number, since it is smaller than the sum of its proper divisors (14212369415526).

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

12117220338522 is a wasteful number, since it uses less digits than its factorization.

12117220338522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374769854.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 12117220338522 in words is "twelve trillion, one hundred seventeen billion, two hundred twenty million, three hundred thirty-eight thousand, five hundred twenty-two".