31204221122 has 16 divisors (see below), whose sum is σ = 47293414080. Its totient is φ = 15440099472.

The previous prime is 31204221119. The next prime is 31204221163. The reversal of 31204221122 is 22112240213.

It is a junction number, because it is equal to n+sod(n) for n = 31204221094 and 31204221103.

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, 92453 + ... + 266375.

It is an arithmetic number, because the mean of its divisors is an integer number (2955838380).

Almost surely, 2^31204221122 is an apocalyptic number.

31204221122 is a deficient number, since it is larger than the sum of its proper divisors (16089192958).

31204221122 is a wasteful number, since it uses less digits than its factorization.

31204221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174857.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31204221122 its reverse (22112240213), we get a palindrome (53316461335).

The spelling of 31204221122 in words is "thirty-one billion, two hundred four million, two hundred twenty-one thousand, one hundred twenty-two".