22557421399 has 2 divisors, whose sum is σ = 22557421400. Its totient is φ = 22557421398.

The previous prime is 22557421391. The next prime is 22557421417. The reversal of 22557421399 is 99312475522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22557421399 - 2³ = 22557421391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22557421391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278710699 + 11278710700.

It is an arithmetic number, because the mean of its divisors is an integer number (11278710700).

Almost surely, 2^22557421399 is an apocalyptic number.

22557421399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22557421399 is an equidigital number, since it uses as much as digits as its factorization.

22557421399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 49.

The spelling of 22557421399 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty-one thousand, three hundred ninety-nine".