31002200022 has 32 divisors (see below), whose sum is σ = 65385100800. Its totient is φ = 9772571808.

The previous prime is 31002200011. The next prime is 31002200051. The reversal of 31002200022 is 22000220013.

It is a super-2 number, since 2×31002200022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31002199980 and 31002200007.

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 15 ways as a sum of consecutive naturals, for example, 180622 + ... + 307617.

It is an arithmetic number, because the mean of its divisors is an integer number (2043284400).

Almost surely, 2^31002200022 is an apocalyptic number.

31002200022 is an abundant number, since it is smaller than the sum of its proper divisors (34382900778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31002200022 is a wasteful number, since it uses less digits than its factorization.

31002200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488820.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 31002200022 its reverse (22000220013), we get a palindrome (53002420035).

The spelling of 31002200022 in words is "thirty-one billion, two million, two hundred thousand, twenty-two".