31212220032022 has 24 divisors (see below), whose sum is σ = 49524699985200. Its totient is φ = 14751057441168.

The previous prime is 31212220032017. The next prime is 31212220032053. The reversal of 31212220032022 is 22023002221213.

It is a junction number, because it is equal to n+sod(n) for n = 31212220031984 and 31212220032002.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 48920197 + ... + 49554112.

It is an arithmetic number, because the mean of its divisors is an integer number (2063529166050).

Almost surely, 2^{31212220032022} is an apocalyptic number.

31212220032022 is a deficient number, since it is larger than the sum of its proper divisors (18312479953178).

31212220032022 is a wasteful number, since it uses less digits than its factorization.

31212220032022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98474788 (or 98474769 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31212220032022 its reverse (22023002221213), we get a palindrome (53235222253235).

The spelling of 31212220032022 in words is "thirty-one trillion, two hundred twelve billion, two hundred twenty million, thirty-two thousand, twenty-two".