31222104100 has 36 divisors (see below), whose sum is σ = 73911238128. Its totient is φ = 11353492000.

The previous prime is 31222104083. The next prime is 31222104157. The reversal of 31222104100 is 140122213.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14190766 + ... + 14192965.

It is an arithmetic number, because the mean of its divisors is an integer number (2053089948).

Almost surely, 2^31222104100 is an apocalyptic number.

It is an amenable number.

31222104100 is an abundant number, since it is smaller than the sum of its proper divisors (42689134028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31222104100 is a wasteful number, since it uses less digits than its factorization.

31222104100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28383756 (or 28383749 counting only the distinct ones).

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

Adding to 31222104100 its reverse (140122213), we get a palindrome (31362226313).

The spelling of 31222104100 in words is "thirty-one billion, two hundred twenty-two million, one hundred four thousand, one hundred".