31222426446212 has 24 divisors (see below), whose sum is σ = 56404047931392. Its totient is φ = 15107024275200.

The previous prime is 31222426446203. The next prime is 31222426446293. The reversal of 31222426446212 is 21264462422213.

It is a self number, because there is not a number n which added to its sum of digits gives 31222426446212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876589 + ... + 8121972.

It is an arithmetic number, because the mean of its divisors is an integer number (2350168663808).

Almost surely, 2^{31222426446212} is an apocalyptic number.

It is an amenable number.

31222426446212 is a deficient number, since it is larger than the sum of its proper divisors (25181621485180).

31222426446212 is a wasteful number, since it uses less digits than its factorization.

31222426446212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023779 (or 10023777 counting only the distinct ones).

The product of its digits is 442368, while the sum is 41.

Adding to 31222426446212 its reverse (21264462422213), we get a palindrome (52486888868425).

The spelling of 31222426446212 in words is "thirty-one trillion, two hundred twenty-two billion, four hundred twenty-six million, four hundred forty-six thousand, two hundred twelve".