12215262160 has 20 divisors (see below), whose sum is σ = 28400484708. Its totient is φ = 4886104832.

The previous prime is 12215262151. The next prime is 12215262167. The reversal of 12215262160 is 6126251221.

It can be written as a sum of positive squares in 2 ways, for example, as 1254009744 + 10961252416 = 35412^2 + 104696^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215262167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76345309 + ... + 76345468.

Almost surely, 2^12215262160 is an apocalyptic number.

12215262160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12215262160 is an abundant number, since it is smaller than the sum of its proper divisors (16185222548).

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

12215262160 is a wasteful number, since it uses less digits than its factorization.

12215262160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152690790 (or 152690784 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 12215262160 in words is "twelve billion, two hundred fifteen million, two hundred sixty-two thousand, one hundred sixty".