31210022001212 has 12 divisors (see below), whose sum is σ = 55231218710640. Its totient is φ = 15429673798176.

The previous prime is 31210022001209. The next prime is 31210022001247. The reversal of 31210022001212 is 21210022001213.

It is a super-2 number, since 2×31210022001212² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 43834300208 + ... + 43834300919.

It is an arithmetic number, because the mean of its divisors is an integer number (4602601559220).

Almost surely, 2^{31210022001212} is an apocalyptic number.

It is an amenable number.

31210022001212 is a deficient number, since it is larger than the sum of its proper divisors (24021196709428).

31210022001212 is a wasteful number, since it uses less digits than its factorization.

31210022001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87668601220 (or 87668601218 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31210022001212 its reverse (21210022001213), we get a palindrome (52420044002425).

Subtracting from 31210022001212 its reverse (21210022001213), we obtain a palindrome (9999999999999).

The spelling of 31210022001212 in words is "thirty-one trillion, two hundred ten billion, twenty-two million, one thousand, two hundred twelve".