22257071 has 2 divisors, whose sum is σ = 22257072. Its totient is φ = 22257070.

The previous prime is 22257061. The next prime is 22257083. The reversal of 22257071 is 17075222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22257071 - 2²² = 18062767 is a prime.

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 22257071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22257061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128535 + 11128536.

It is an arithmetic number, because the mean of its divisors is an integer number (11128536).

Almost surely, 2^22257071 is an apocalyptic number.

22257071 is a deficient number, since it is larger than the sum of its proper divisors (1).

22257071 is an equidigital number, since it uses as much as digits as its factorization.

22257071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 22257071 is about 4717.7400309894. The cubic root of 22257071 is about 281.2911079995.

The spelling of 22257071 in words is "twenty-two million, two hundred fifty-seven thousand, seventy-one".