312230221132 has 18 divisors (see below), whose sum is σ = 580434902852. Its totient is φ = 146931868224.

The previous prime is 312230221109. The next prime is 312230221153. The reversal of 312230221132 is 231122032213.

It is a super-2 number, since 2×312230221132² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135046518 + ... + 135048829.

Almost surely, 2^312230221132 is an apocalyptic number.

It is an amenable number.

312230221132 is a deficient number, since it is larger than the sum of its proper divisors (268204681720).

312230221132 is a wasteful number, since it uses less digits than its factorization.

312230221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270095385 (or 270095366 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312230221132 its reverse (231122032213), we get a palindrome (543352253345).

The spelling of 312230221132 in words is "three hundred twelve billion, two hundred thirty million, two hundred twenty-one thousand, one hundred thirty-two".