22367231 has 2 divisors, whose sum is σ = 22367232. Its totient is φ = 22367230.

The previous prime is 22367221. The next prime is 22367239. The reversal of 22367231 is 13276322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22367231 - 2⁶ = 22367167 is a prime.

It is a super-2 number, since 2×22367231² = 1000586045214722, which contains 22 as substring.

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 22367231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22367239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11183615 + 11183616.

It is an arithmetic number, because the mean of its divisors is an integer number (11183616).

Almost surely, 2^22367231 is an apocalyptic number.

22367231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22367231 is an equidigital number, since it uses as much as digits as its factorization.

22367231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 26.

The square root of 22367231 is about 4729.4007019917. The cubic root of 22367231 is about 281.7544221192.

Subtracting from 22367231 its reverse (13276322), we obtain a palindrome (9090909).

The spelling of 22367231 in words is "twenty-two million, three hundred sixty-seven thousand, two hundred thirty-one".