99021120211 has 8 divisors (see below), whose sum is σ = 106651191024. Its totient is φ = 91392915360.

The previous prime is 99021120161. The next prime is 99021120251. The reversal of 99021120211 is 11202112099.

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 99021120211 - 2³⁵ = 64661381843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99021120211.

It is not an unprimeable number, because it can be changed into a prime (99021120251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 355285 + ... + 569446.

It is an arithmetic number, because the mean of its divisors is an integer number (13331398878).

Almost surely, 2^99021120211 is an apocalyptic number.

99021120211 is a deficient number, since it is larger than the sum of its proper divisors (7630070813).

99021120211 is a wasteful number, since it uses less digits than its factorization.

99021120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932981.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 99021120211 in words is "ninety-nine billion, twenty-one million, one hundred twenty thousand, two hundred eleven".