22282279 has 2 divisors, whose sum is σ = 22282280. Its totient is φ = 22282278.

The previous prime is 22282259. The next prime is 22282283. The reversal of 22282279 is 97228222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22282279 - 2⁹ = 22281767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22282259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11141139 + 11141140.

It is an arithmetic number, because the mean of its divisors is an integer number (11141140).

Almost surely, 2^22282279 is an apocalyptic number.

22282279 is a deficient number, since it is larger than the sum of its proper divisors (1).

22282279 is an equidigital number, since it uses as much as digits as its factorization.

22282279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 22282279 is about 4720.4108931321. The cubic root of 22282279 is about 281.3972631919.

The spelling of 22282279 in words is "twenty-two million, two hundred eighty-two thousand, two hundred seventy-nine".