22170199 has 2 divisors, whose sum is σ = 22170200. Its totient is φ = 22170198.

The previous prime is 22170179. The next prime is 22170221. The reversal of 22170199 is 99107122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22170199 - 2²³ = 13781591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22170199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22170139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11085099 + 11085100.

It is an arithmetic number, because the mean of its divisors is an integer number (11085100).

Almost surely, 2^22170199 is an apocalyptic number.

22170199 is a deficient number, since it is larger than the sum of its proper divisors (1).

22170199 is an equidigital number, since it uses as much as digits as its factorization.

22170199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 22170199 is about 4708.5240787321. The cubic root of 22170199 is about 280.9246599184.

The spelling of 22170199 in words is "twenty-two million, one hundred seventy thousand, one hundred ninety-nine".