31021022122 has 16 divisors (see below), whose sum is σ = 48342682440. Its totient is φ = 14911386112.

The previous prime is 31021022113. The next prime is 31021022141. The reversal of 31021022122 is 22122012013.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12782789721 + 18238232401 = 113061^2 + 135049^2 .

It is a super-2 number, since 2×31021022122² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31021022096 and 31021022105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1134223 + ... + 1161250.

Almost surely, 2^31021022122 is an apocalyptic number.

31021022122 is a deficient number, since it is larger than the sum of its proper divisors (17321660318).

31021022122 is a wasteful number, since it uses less digits than its factorization.

31021022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295737.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31021022122 its reverse (22122012013), we get a palindrome (53143034135).

The spelling of 31021022122 in words is "thirty-one billion, twenty-one million, twenty-two thousand, one hundred twenty-two".