31322122 has 12 divisors (see below), whose sum is σ = 50875830. Its totient is φ = 14456208.

The previous prime is 31322119. The next prime is 31322129. The reversal of 31322122 is 22122313.

It can be written as a sum of positive squares in 3 ways, for example, as 11350161 + 19971961 = 3369^2 + 4469^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31322096 and 31322105.

It is not an unprimeable number, because it can be changed into a prime (31322129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45997 + ... + 46672.

Almost surely, 2^31322122 is an apocalyptic number.

31322122 is a deficient number, since it is larger than the sum of its proper divisors (19553708).

31322122 is a wasteful number, since it uses less digits than its factorization.

31322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92697 (or 92684 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 31322122 is about 5596.6170138754. The cubic root of 31322122 is about 315.2223910352. Note that the first 3 decimals are identical.

Adding to 31322122 its reverse (22122313), we get a palindrome (53444435).

The spelling of 31322122 in words is "thirty-one million, three hundred twenty-two thousand, one hundred twenty-two".