31121400022202 has 48 divisors (see below), whose sum is σ = 55694678637312. Its totient is φ = 12999424183200.

The previous prime is 31121400022201. The next prime is 31121400022241. The reversal of 31121400022202 is 20222000412113.

It is not an unprimeable number, because it can be changed into a prime (31121400022201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19056098 + ... + 20624685.

It is an arithmetic number, because the mean of its divisors is an integer number (1160305804944).

Almost surely, 2^{31121400022202} is an apocalyptic number.

31121400022202 is a deficient number, since it is larger than the sum of its proper divisors (24573278615110).

31121400022202 is a wasteful number, since it uses less digits than its factorization.

31121400022202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39681003 (or 39680996 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31121400022202 its reverse (20222000412113), we get a palindrome (51343400434315).

The spelling of 31121400022202 in words is "thirty-one trillion, one hundred twenty-one billion, four hundred million, twenty-two thousand, two hundred two".