31120021222194 has 64 divisors (see below), whose sum is σ = 63407777476608. Its totient is φ = 10180264550400.

The previous prime is 31120021222193. The next prime is 31120021222229. The reversal of 31120021222194 is 49122212002113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31120021222193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70404114 + ... + 70844754.

It is an arithmetic number, because the mean of its divisors is an integer number (990746523072).

Almost surely, 2^{31120021222194} is an apocalyptic number.

31120021222194 is an abundant number, since it is smaller than the sum of its proper divisors (32287756254414).

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

31120021222194 is a wasteful number, since it uses less digits than its factorization.

31120021222194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441523.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 31120021222194 in words is "thirty-one trillion, one hundred twenty billion, twenty-one million, two hundred twenty-two thousand, one hundred ninety-four".