22266247 has 2 divisors, whose sum is σ = 22266248. Its totient is φ = 22266246.

The previous prime is 22266191. The next prime is 22266259. The reversal of 22266247 is 74266222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22266247 - 2¹⁹ = 21741959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22266547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11133123 + 11133124.

It is an arithmetic number, because the mean of its divisors is an integer number (11133124).

Almost surely, 2^22266247 is an apocalyptic number.

22266247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22266247 is an equidigital number, since it uses as much as digits as its factorization.

22266247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 22266247 is about 4718.7124303140. The cubic root of 22266247 is about 281.3297589759.

The spelling of 22266247 in words is "twenty-two million, two hundred sixty-six thousand, two hundred forty-seven".