12215659316 has 24 divisors (see below), whose sum is σ = 24438200640. Its totient is φ = 5233807872.

The previous prime is 12215659301. The next prime is 12215659369. The reversal of 12215659316 is 61395651221.

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, 42836 + ... + 162068.

It is an arithmetic number, because the mean of its divisors is an integer number (1018258360).

Almost surely, 2^12215659316 is an apocalyptic number.

It is an amenable number.

12215659316 is an abundant number, since it is smaller than the sum of its proper divisors (12222541324).

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

12215659316 is a wasteful number, since it uses less digits than its factorization.

12215659316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122903 (or 122901 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The spelling of 12215659316 in words is "twelve billion, two hundred fifteen million, six hundred fifty-nine thousand, three hundred sixteen".