22115227 has 2 divisors, whose sum is σ = 22115228. Its totient is φ = 22115226.

The previous prime is 22115209. The next prime is 22115237. The reversal of 22115227 is 72251122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22115227 - 2⁷ = 22115099 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22115198 and 22115207.

It is not a weakly prime, because it can be changed into another prime (22115237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11057613 + 11057614.

It is an arithmetic number, because the mean of its divisors is an integer number (11057614).

Almost surely, 2^22115227 is an apocalyptic number.

22115227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22115227 is an equidigital number, since it uses as much as digits as its factorization.

22115227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 22115227 is about 4702.6829576317. The cubic root of 22115227 is about 280.6922793268.

Adding to 22115227 its reverse (72251122), we get a palindrome (94366349).

The spelling of 22115227 in words is "twenty-two million, one hundred fifteen thousand, two hundred twenty-seven".