22225211 has 2 divisors, whose sum is σ = 22225212. Its totient is φ = 22225210.

The previous prime is 22225129. The next prime is 22225277. The reversal of 22225211 is 11252222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22225211 - 2²² = 18030907 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22225211.

It is not a weakly prime, because it can be changed into another prime (22225111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112605 + 11112606.

It is an arithmetic number, because the mean of its divisors is an integer number (11112606).

Almost surely, 2^22225211 is an apocalyptic number.

22225211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225211 is an equidigital number, since it uses as much as digits as its factorization.

22225211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 160, while the sum is 17.

The square root of 22225211 is about 4714.3622050072. The cubic root of 22225211 is about 281.1568253663.

Adding to 22225211 its reverse (11252222), we get a palindrome (33477433).

The spelling of 22225211 in words is "twenty-two million, two hundred twenty-five thousand, two hundred eleven".