22119217 has 2 divisors, whose sum is σ = 22119218. Its totient is φ = 22119216.

The previous prime is 22119197. The next prime is 22119233. The reversal of 22119217 is 71291122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21986721 + 132496 = 4689^2 + 364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22119217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22119191 and 22119200.

It is not a weakly prime, because it can be changed into another prime (22119247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11059608 + 11059609.

It is an arithmetic number, because the mean of its divisors is an integer number (11059609).

Almost surely, 2^22119217 is an apocalyptic number.

It is an amenable number.

22119217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22119217 is an equidigital number, since it uses as much as digits as its factorization.

22119217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 25.

The square root of 22119217 is about 4703.1071644180. The cubic root of 22119217 is about 280.7091590216.

The spelling of 22119217 in words is "twenty-two million, one hundred nineteen thousand, two hundred seventeen".