22225111 has 2 divisors, whose sum is σ = 22225112. Its totient is φ = 22225110.

The previous prime is 22225087. The next prime is 22225129. The reversal of 22225111 is 11152222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22225111 - 2⁹ = 22224599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22225211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11112555 + 11112556.

It is an arithmetic number, because the mean of its divisors is an integer number (11112556).

Almost surely, 2^22225111 is an apocalyptic number.

22225111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225111 is an equidigital number, since it uses as much as digits as its factorization.

22225111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80, while the sum is 16.

The square root of 22225111 is about 4714.3515991067. The cubic root of 22225111 is about 281.1564036871.

Adding to 22225111 its reverse (11152222), we get a palindrome (33377333).

The spelling of 22225111 in words is "twenty-two million, two hundred twenty-five thousand, one hundred eleven".