22265197 has 2 divisors, whose sum is σ = 22265198. Its totient is φ = 22265196.

The previous prime is 22265179. The next prime is 22265203. The reversal of 22265197 is 79156222.

Together with previous prime (22265179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16208676 + 6056521 = 4026^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 22265197 - 2¹⁵ = 22232429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22265167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11132598 + 11132599.

It is an arithmetic number, because the mean of its divisors is an integer number (11132599).

Almost surely, 2^22265197 is an apocalyptic number.

It is an amenable number.

22265197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22265197 is an equidigital number, since it uses as much as digits as its factorization.

22265197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 22265197 is about 4718.6011698384. The cubic root of 22265197 is about 281.3253367236.

The spelling of 22265197 in words is "twenty-two million, two hundred sixty-five thousand, one hundred ninety-seven".