12210331312 has 20 divisors (see below), whose sum is σ = 24058493640. Its totient is φ = 6001687808.

The previous prime is 12210331249. The next prime is 12210331337. The reversal of 12210331312 is 21313301221.

It is a self number, because there is not a number n which added to its sum of digits gives 12210331312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6466393 + ... + 6468280.

It is an arithmetic number, because the mean of its divisors is an integer number (1202924682).

Almost surely, 2^12210331312 is an apocalyptic number.

It is an amenable number.

12210331312 is a deficient number, since it is larger than the sum of its proper divisors (11848162328).

12210331312 is a wasteful number, since it uses less digits than its factorization.

12210331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12934740 (or 12934734 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12210331312 its reverse (21313301221), we get a palindrome (33523632533).

The spelling of 12210331312 in words is "twelve billion, two hundred ten million, three hundred thirty-one thousand, three hundred twelve".