22202197912991 has 2 divisors, whose sum is σ = 22202197912992. Its totient is φ = 22202197912990.

The previous prime is 22202197912981. The next prime is 22202197913017. The reversal of 22202197912991 is 19921979120222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22202197912991 - 2²⁶ = 22202130804127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22202197912981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101098956495 + 11101098956496.

It is an arithmetic number, because the mean of its divisors is an integer number (11101098956496).

Almost surely, 2^{22202197912991} is an apocalyptic number.

22202197912991 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202197912991 is an equidigital number, since it uses as much as digits as its factorization.

22202197912991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 22202197912991 in words is "twenty-two trillion, two hundred two billion, one hundred ninety-seven million, nine hundred twelve thousand, nine hundred ninety-one".