31004011222 has 16 divisors (see below), whose sum is σ = 49316422320. Its totient is φ = 14567972608.

The previous prime is 31004011217. The next prime is 31004011261. The reversal of 31004011222 is 22211040013.

It is a super-2 number, since 2×31004011222² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31004011196 and 31004011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669463 + ... + 714274.

It is an arithmetic number, because the mean of its divisors is an integer number (3082276395).

Almost surely, 2^31004011222 is an apocalyptic number.

31004011222 is a deficient number, since it is larger than the sum of its proper divisors (18312411098).

31004011222 is a wasteful number, since it uses less digits than its factorization.

31004011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384415.

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

Adding to 31004011222 its reverse (22211040013), we get a palindrome (53215051235).

The spelling of 31004011222 in words is "thirty-one billion, four million, eleven thousand, two hundred twenty-two".