99900122100999 has 32 divisors (see below), whose sum is σ = 158015166425856. Its totient is φ = 55443918021120.

The previous prime is 99900122100997. The next prime is 99900122101001.

It is a happy number.

99900122100999 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (99900122100997) and next prime (99900122101001).

It is not a de Polignac number, because 99900122100999 - 2¹ = 99900122100997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99900122100997) 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, 2406399297 + ... + 2406440810.

It is an arithmetic number, because the mean of its divisors is an integer number (4937973950808).

Almost surely, 2^{99900122100999} is an apocalyptic number.

99900122100999 is a deficient number, since it is larger than the sum of its proper divisors (58115044324857).

99900122100999 is a wasteful number, since it uses less digits than its factorization.

99900122100999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812840175.

The product of its (nonzero) digits is 2125764, while the sum is 60.

The spelling of 99900122100999 in words is "ninety-nine trillion, nine hundred billion, one hundred twenty-two million, one hundred thousand, nine hundred ninety-nine".