22200021220991 has 2 divisors, whose sum is σ = 22200021220992. Its totient is φ = 22200021220990.

The previous prime is 22200021220969. The next prime is 22200021221009. The reversal of 22200021220991 is 19902212000222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22200021220991 - 2³⁴ = 22182841351807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22200021228991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100010610495 + 11100010610496.

It is an arithmetic number, because the mean of its divisors is an integer number (11100010610496).

Almost surely, 2^{22200021220991} is an apocalyptic number.

22200021220991 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200021220991 is an equidigital number, since it uses as much as digits as its factorization.

22200021220991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 22200021220991 in words is "twenty-two trillion, two hundred billion, twenty-one million, two hundred twenty thousand, nine hundred ninety-one".