12132210231 has 12 divisors (see below), whose sum is σ = 17854951608. Its totient is φ = 7935533424.

The previous prime is 12132210227. The next prime is 12132210257. The reversal of 12132210231 is 13201223121.

12132210231 is a `hidden beast` number, since 1 + 213 + 221 + 0 + 231 = 666.

It is not a de Polignac number, because 12132210231 - 2² = 12132210227 is a prime.

It is a super-2 number, since 2×12132210231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132210221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12716725 + ... + 12717678.

It is an arithmetic number, because the mean of its divisors is an integer number (1487912634).

Almost surely, 2^12132210231 is an apocalyptic number.

12132210231 is a deficient number, since it is larger than the sum of its proper divisors (5722741377).

12132210231 is a wasteful number, since it uses less digits than its factorization.

12132210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25434462 (or 25434459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12132210231 its reverse (13201223121), we get a palindrome (25333433352).

The spelling of 12132210231 in words is "twelve billion, one hundred thirty-two million, two hundred ten thousand, two hundred thirty-one".