31221133130199 has 16 divisors (see below), whose sum is σ = 42687487320192. Its totient is φ = 20286506862048.

The previous prime is 31221133130189. The next prime is 31221133130219. The reversal of 31221133130199 is 99103133112213.

It is not a de Polignac number, because 31221133130199 - 2¹² = 31221133126103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31221133130189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259066404 + ... + 259186889.

It is an arithmetic number, because the mean of its divisors is an integer number (2667967957512).

Almost surely, 2^{31221133130199} is an apocalyptic number.

31221133130199 is a deficient number, since it is larger than the sum of its proper divisors (11466354189993).

31221133130199 is a wasteful number, since it uses less digits than its factorization.

31221133130199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518253806.

The product of its (nonzero) digits is 26244, while the sum is 39.

The spelling of 31221133130199 in words is "thirty-one trillion, two hundred twenty-one billion, one hundred thirty-three million, one hundred thirty thousand, one hundred ninety-nine".