12210531700 has 72 divisors (see below), whose sum is σ = 26658543744. Its totient is φ = 4854528000.

The previous prime is 12210531691. The next prime is 12210531721. The reversal of 12210531700 is 713501221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21161812 + ... + 21162388.

It is an arithmetic number, because the mean of its divisors is an integer number (370257552).

Almost surely, 2^12210531700 is an apocalyptic number.

12210531700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210531700 is an abundant number, since it is smaller than the sum of its proper divisors (14448012044).

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

12210531700 is a wasteful number, since it uses less digits than its factorization.

12210531700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The spelling of 12210531700 in words is "twelve billion, two hundred ten million, five hundred thirty-one thousand, seven hundred".