22169201 has 2 divisors, whose sum is σ = 22169202. Its totient is φ = 22169200.

The previous prime is 22169177. The next prime is 22169221. The reversal of 22169201 is 10296122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21169201 + 1000000 = 4601^2 + 1000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22169201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22169221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11084600 + 11084601.

It is an arithmetic number, because the mean of its divisors is an integer number (11084601).

Almost surely, 2^22169201 is an apocalyptic number.

It is an amenable number.

22169201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22169201 is an equidigital number, since it uses as much as digits as its factorization.

22169201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 22169201 is about 4708.4180995319. The cubic root of 22169201 is about 280.9204445448.

The spelling of 22169201 in words is "twenty-two million, one hundred sixty-nine thousand, two hundred one".