21002022112099 has 16 divisors (see below), whose sum is σ = 24008730370240. Its totient is φ = 17996919344640.

The previous prime is 21002022112081. The next prime is 21002022112129. The reversal of 21002022112099 is 99021122020012.

It is a cyclic number.

It is not a de Polignac number, because 21002022112099 - 2²⁷ = 21001887894371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21002022112099.

It is not an unprimeable number, because it can be changed into a prime (21002022113099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680961919 + ... + 680992759.

It is an arithmetic number, because the mean of its divisors is an integer number (1500545648140).

Almost surely, 2^{21002022112099} is an apocalyptic number.

21002022112099 is a deficient number, since it is larger than the sum of its proper divisors (3006708258141).

21002022112099 is a wasteful number, since it uses less digits than its factorization.

21002022112099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53710.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 21002022112099 in words is "twenty-one trillion, two billion, twenty-two million, one hundred twelve thousand, ninety-nine".