31122442244 has 12 divisors (see below), whose sum is σ = 57330814800. Its totient is φ = 14742209448.

The previous prime is 31122442213. The next prime is 31122442271. The reversal of 31122442244 is 44224422113.

It is a happy number.

It is a super-2 number, since 2×31122442244² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204752834 + ... + 204752985.

It is an arithmetic number, because the mean of its divisors is an integer number (4777567900).

Almost surely, 2^31122442244 is an apocalyptic number.

It is an amenable number.

31122442244 is a deficient number, since it is larger than the sum of its proper divisors (26208372556).

31122442244 is a wasteful number, since it uses less digits than its factorization.

31122442244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409505842 (or 409505840 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

Adding to 31122442244 its reverse (44224422113), we get a palindrome (75346864357).

The spelling of 31122442244 in words is "thirty-one billion, one hundred twenty-two million, four hundred forty-two thousand, two hundred forty-four".