22422227 has 2 divisors, whose sum is σ = 22422228. Its totient is φ = 22422226.

The previous prime is 22422199. The next prime is 22422247. The reversal of 22422227 is 72222422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22422227 - 2²⁴ = 5645011 is a prime.

It is not a weakly prime, because it can be changed into another prime (22422247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11211113 + 11211114.

It is an arithmetic number, because the mean of its divisors is an integer number (11211114).

Almost surely, 2^22422227 is an apocalyptic number.

22422227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22422227 is an equidigital number, since it uses as much as digits as its factorization.

22422227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 23.

The square root of 22422227 is about 4735.2113997160. The cubic root of 22422227 is about 281.9851567393.

Adding to 22422227 its reverse (72222422), we get a palindrome (94644649).

The spelling of 22422227 in words is "twenty-two million, four hundred twenty-two thousand, two hundred twenty-seven".