22259399 has 2 divisors, whose sum is σ = 22259400. Its totient is φ = 22259398.

The previous prime is 22259383. The next prime is 22259401. The reversal of 22259399 is 99395222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22259399 - 2⁴ = 22259383 is a prime.

Together with 22259401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22259329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11129699 + 11129700.

It is an arithmetic number, because the mean of its divisors is an integer number (11129700).

Almost surely, 2^22259399 is an apocalyptic number.

22259399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22259399 is an equidigital number, since it uses as much as digits as its factorization.

22259399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 41.

The square root of 22259399 is about 4717.9867528428. The cubic root of 22259399 is about 281.3009149633.

The spelling of 22259399 in words is "twenty-two million, two hundred fifty-nine thousand, three hundred ninety-nine".