422220559 has 2 divisors, whose sum is σ = 422220560. Its totient is φ = 422220558.

The previous prime is 422220521. The next prime is 422220563. The reversal of 422220559 is 955022224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422220559 is a prime.

It is equal to p_22456435 and since 422220559 and 22456435 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422220559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422220509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211110279 + 211110280.

It is an arithmetic number, because the mean of its divisors is an integer number (211110280).

Almost surely, 2^422220559 is an apocalyptic number.

422220559 is a deficient number, since it is larger than the sum of its proper divisors (1).

422220559 is an equidigital number, since it uses as much as digits as its factorization.

422220559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 422220559 is about 20548.0062049825. The cubic root of 422220559 is about 750.2047198183.

The spelling of 422220559 in words is "four hundred twenty-two million, two hundred twenty thousand, five hundred fifty-nine".