12120665522 has 16 divisors (see below), whose sum is σ = 21062919552. Its totient is φ = 5123412000.

The previous prime is 12120665519. The next prime is 12120665567. The reversal of 12120665522 is 22556602121.

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, 5928854 + ... + 5930897.

It is an arithmetic number, because the mean of its divisors is an integer number (1316432472).

Almost surely, 2^12120665522 is an apocalyptic number.

12120665522 is a deficient number, since it is larger than the sum of its proper divisors (8942254030).

12120665522 is a wasteful number, since it uses less digits than its factorization.

12120665522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11859833.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 12120665522 in words is "twelve billion, one hundred twenty million, six hundred sixty-five thousand, five hundred twenty-two".