20312220110994 has 72 divisors (see below), whose sum is σ = 51538676892300. Its totient is φ = 5764541815872.

The previous prime is 20312220110933. The next prime is 20312220111019. The reversal of 20312220110994 is 49901102221302.

20312220110994 is a `hidden beast` number, since 2 + 0 + 312 + 220 + 110 + 9 + 9 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17471940203025 + 2840279907969 = 4179945^2 + 1685313^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77149549 + ... + 77412384.

Almost surely, 2^{20312220110994} is an apocalyptic number.

20312220110994 is an abundant number, since it is smaller than the sum of its proper divisors (31226456781306).

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

20312220110994 is a wasteful number, since it uses less digits than its factorization.

20312220110994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154562104 (or 154562094 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 20312220110994 in words is "twenty trillion, three hundred twelve billion, two hundred twenty million, one hundred ten thousand, nine hundred ninety-four".