22112021999 has 4 divisors (see below), whose sum is σ = 22125766320. Its totient is φ = 22098277680.

The previous prime is 22112021929. The next prime is 22112022001. The reversal of 22112021999 is 99912021122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22112021999 - 2²⁸ = 21843586543 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 (22112021909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6869747 + ... + 6872964.

It is an arithmetic number, because the mean of its divisors is an integer number (5531441580).

Almost surely, 2^22112021999 is an apocalyptic number.

22112021999 is a deficient number, since it is larger than the sum of its proper divisors (13744321).

22112021999 is a wasteful number, since it uses less digits than its factorization.

22112021999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13744320.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 22112021999 in words is "twenty-two billion, one hundred twelve million, twenty-one thousand, nine hundred ninety-nine".