22226791 has 2 divisors, whose sum is σ = 22226792. Its totient is φ = 22226790.

The previous prime is 22226779. The next prime is 22226801. The reversal of 22226791 is 19762222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22226791 - 2⁹ = 22226279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22226741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113395 + 11113396.

It is an arithmetic number, because the mean of its divisors is an integer number (11113396).

Almost surely, 2^22226791 is an apocalyptic number.

22226791 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226791 is an equidigital number, since it uses as much as digits as its factorization.

22226791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 22226791 is about 4714.5297750677. The cubic root of 22226791 is about 281.1634877291.

The spelling of 22226791 in words is "twenty-two million, two hundred twenty-six thousand, seven hundred ninety-one".