12213565132 has 24 divisors (see below), whose sum is σ = 22120906752. Its totient is φ = 5894336400.

The previous prime is 12213565129. The next prime is 12213565159. The reversal of 12213565132 is 23156531221.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 12213565094 and 12213565103.

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, 81094 + ... + 176077.

It is an arithmetic number, because the mean of its divisors is an integer number (921704448).

Almost surely, 2^12213565132 is an apocalyptic number.

It is an amenable number.

12213565132 is a deficient number, since it is larger than the sum of its proper divisors (9907341620).

12213565132 is a wasteful number, since it uses less digits than its factorization.

12213565132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257589 (or 257587 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The spelling of 12213565132 in words is "twelve billion, two hundred thirteen million, five hundred sixty-five thousand, one hundred thirty-two".