22189117 has 2 divisors, whose sum is σ = 22189118. Its totient is φ = 22189116.

The previous prime is 22189103. The next prime is 22189129. The reversal of 22189117 is 71198122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 2643876 = 4421^2 + 1626^2 .

It is a cyclic number.

It is not a de Polignac number, because 22189117 - 2¹⁵ = 22156349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22184117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11094558 + 11094559.

It is an arithmetic number, because the mean of its divisors is an integer number (11094559).

Almost surely, 2^22189117 is an apocalyptic number.

It is an amenable number.

22189117 is a deficient number, since it is larger than the sum of its proper divisors (1).

22189117 is an equidigital number, since it uses as much as digits as its factorization.

22189117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The square root of 22189117 is about 4710.5325601252. The cubic root of 22189117 is about 281.0045422534.

The spelling of 22189117 in words is "twenty-two million, one hundred eighty-nine thousand, one hundred seventeen".