22230287 has 2 divisors, whose sum is σ = 22230288. Its totient is φ = 22230286.

The previous prime is 22230281. The next prime is 22230289. The reversal of 22230287 is 78203222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22230287 - 2¹⁴ = 22213903 is a prime.

Together with 22230289, 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 (22230281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11115143 + 11115144.

It is an arithmetic number, because the mean of its divisors is an integer number (11115144).

Almost surely, 2^22230287 is an apocalyptic number.

22230287 is a deficient number, since it is larger than the sum of its proper divisors (1).

22230287 is an equidigital number, since it uses as much as digits as its factorization.

22230287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22230287 is about 4714.9005291734. The cubic root of 22230287 is about 281.1782281389.

The spelling of 22230287 in words is "twenty-two million, two hundred thirty thousand, two hundred eighty-seven".