22212021201999 has 4 divisors (see below), whose sum is σ = 29616028269336. Its totient is φ = 14808014134664.

The previous prime is 22212021201961. The next prime is 22212021202001. The reversal of 22212021201999 is 99910212021222.

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 22212021201999 - 2²⁷ = 22211886984271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22212021201999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212021201199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3702003533664 + ... + 3702003533669.

It is an arithmetic number, because the mean of its divisors is an integer number (7404007067334).

Almost surely, 2^{22212021201999} is an apocalyptic number.

22212021201999 is a deficient number, since it is larger than the sum of its proper divisors (7404007067337).

22212021201999 is an equidigital number, since it uses as much as digits as its factorization.

22212021201999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404007067336.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 22212021201999 in words is "twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred one thousand, nine hundred ninety-nine".