22204402091 has 2 divisors, whose sum is σ = 22204402092. Its totient is φ = 22204402090.

The previous prime is 22204402067. The next prime is 22204402093. The reversal of 22204402091 is 19020440222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22204402091 - 2⁶ = 22204402027 is a prime.

Together with 22204402093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22204402091.

It is not a weakly prime, because it can be changed into another prime (22204402093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102201045 + 11102201046.

It is an arithmetic number, because the mean of its divisors is an integer number (11102201046).

Almost surely, 2^22204402091 is an apocalyptic number.

22204402091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22204402091 is an equidigital number, since it uses as much as digits as its factorization.

22204402091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 22204402091 in words is "twenty-two billion, two hundred four million, four hundred two thousand, ninety-one".