99976927122 has 18 divisors (see below), whose sum is σ = 216619582023. Its totient is φ = 33325195212.

The previous prime is 99976927111. The next prime is 99976927129. The reversal of 99976927122 is 22172967999.

It can be written as a sum of positive squares in only one way, i.e., 49988463561 + 49988463561 = 223581^2 + 223581^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=223581.

It is a self number, because there is not a number n which added to its sum of digits gives 99976927122.

It is not an unprimeable number, because it can be changed into a prime (99976927129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1304223 + ... + 1378749.

Almost surely, 2^99976927122 is an apocalyptic number.

99976927122 is an abundant number, since it is smaller than the sum of its proper divisors (116642654901).

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

99976927122 is an frugal number, since it uses more digits than its factorization.

99976927122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149062 (or 74532 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 99976927122 in words is "ninety-nine billion, nine hundred seventy-six million, nine hundred twenty-seven thousand, one hundred twenty-two".