99110110021 has 8 divisors (see below), whose sum is σ = 106816658144. Its totient is φ = 91415375280.

The previous prime is 99110110003. The next prime is 99110110031. The reversal of 99110110021 is 12001101199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99110110021 - 2⁷ = 99110109893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99110110031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2935911 + ... + 2969476.

It is an arithmetic number, because the mean of its divisors is an integer number (13352082268).

Almost surely, 2^99110110021 is an apocalyptic number.

It is an amenable number.

99110110021 is a deficient number, since it is larger than the sum of its proper divisors (7706548123).

99110110021 is a wasteful number, since it uses less digits than its factorization.

99110110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906691.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 99110110021 in words is "ninety-nine billion, one hundred ten million, one hundred ten thousand, twenty-one".