12215351156352 has 64 divisors (see below), whose sum is σ = 32694713868960. Its totient is φ = 4040701383680.

The previous prime is 12215351156341. The next prime is 12215351156369. The reversal of 12215351156352 is 25365115351221.

It is a tau number, because it is divible by the number of its divisors (64).

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, 121365003 + ... + 121465610.

Almost surely, 2^{12215351156352} is an apocalyptic number.

12215351156352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12215351156352 is an abundant number, since it is smaller than the sum of its proper divisors (20479362712608).

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

12215351156352 is a wasteful number, since it uses less digits than its factorization.

12215351156352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242830761 (or 242830749 counting only the distinct ones).

The product of its digits is 270000, while the sum is 42.

The spelling of 12215351156352 in words is "twelve trillion, two hundred fifteen billion, three hundred fifty-one million, one hundred fifty-six thousand, three hundred fifty-two".