22021020111999 has 32 divisors (see below), whose sum is σ = 29675816273664. Its totient is φ = 14523690348800.

The previous prime is 22021020111967. The next prime is 22021020112027. The reversal of 22021020111999 is 99911102012022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22021020111999 - 2⁵ = 22021020111967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021020111599) 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, 3355325092 + ... + 3355331654.

It is an arithmetic number, because the mean of its divisors is an integer number (927369258552).

Almost surely, 2^{22021020111999} is an apocalyptic number.

22021020111999 is a deficient number, since it is larger than the sum of its proper divisors (7654796161665).

22021020111999 is a wasteful number, since it uses less digits than its factorization.

22021020111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847.

The product of its (nonzero) digits is 11664, while the sum is 39.

The spelling of 22021020111999 in words is "twenty-two trillion, twenty-one billion, twenty million, one hundred eleven thousand, nine hundred ninety-nine".