31022213210012 has 12 divisors (see below), whose sum is σ = 54406127706336. Its totient is φ = 15477605293920.

The previous prime is 31022213210011. The next prime is 31022213210039. The reversal of 31022213210012 is 21001231222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31022213210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8375325689 + ... + 8375329392.

It is an arithmetic number, because the mean of its divisors is an integer number (4533843975528).

Almost surely, 2^{31022213210012} is an apocalyptic number.

It is an amenable number.

31022213210012 is a deficient number, since it is larger than the sum of its proper divisors (23383914496324).

31022213210012 is a wasteful number, since it uses less digits than its factorization.

31022213210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16750655548 (or 16750655546 counting only the distinct ones).

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

Adding to 31022213210012 its reverse (21001231222013), we get a palindrome (52023444432025).

The spelling of 31022213210012 in words is "thirty-one trillion, twenty-two billion, two hundred thirteen million, two hundred ten thousand, twelve".