22237223 has 2 divisors, whose sum is σ = 22237224. Its totient is φ = 22237222.

The previous prime is 22237213. The next prime is 22237231. The reversal of 22237223 is 32273222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22237223 - 2⁸ = 22236967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22237213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11118611 + 11118612.

It is an arithmetic number, because the mean of its divisors is an integer number (11118612).

Almost surely, 2^22237223 is an apocalyptic number.

22237223 is a deficient number, since it is larger than the sum of its proper divisors (1).

22237223 is an equidigital number, since it uses as much as digits as its factorization.

22237223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 23.

The square root of 22237223 is about 4715.6360122469. The cubic root of 22237223 is about 281.2074682681.

The spelling of 22237223 in words is "twenty-two million, two hundred thirty-seven thousand, two hundred twenty-three".