12210923136 has 64 divisors (see below), whose sum is σ = 32469660000. Its totient is φ = 4065991680.

The previous prime is 12210923119. The next prime is 12210923159. The reversal of 12210923136 is 63132901221.

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, 356490 + ... + 389238.

Almost surely, 2^12210923136 is an apocalyptic number.

12210923136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210923136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16234830000).

12210923136 is an abundant number, since it is smaller than the sum of its proper divisors (20258736864).

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

12210923136 is an equidigital number, since it uses as much as digits as its factorization.

12210923136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33737 (or 33725 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 12210923136 in words is "twelve billion, two hundred ten million, nine hundred twenty-three thousand, one hundred thirty-six".