31312001202212 has 12 divisors (see below), whose sum is σ = 54797761366656. Its totient is φ = 15655497954600.

The previous prime is 31312001202199. The next prime is 31312001202217. The reversal of 31312001202212 is 21220210021313.

It is not an unprimeable number, because it can be changed into a prime (31312001202217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125521448 + ... + 125770655.

It is an arithmetic number, because the mean of its divisors is an integer number (4566480113888).

Almost surely, 2^{31312001202212} is an apocalyptic number.

It is an amenable number.

31312001202212 is a deficient number, since it is larger than the sum of its proper divisors (23485760164444).

31312001202212 is a wasteful number, since it uses less digits than its factorization.

31312001202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251323258 (or 251323256 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31312001202212 its reverse (21220210021313), we get a palindrome (52532211223525).

The spelling of 31312001202212 in words is "thirty-one trillion, three hundred twelve billion, one million, two hundred two thousand, two hundred twelve".