22790111 has 2 divisors, whose sum is σ = 22790112. Its totient is φ = 22790110.

The previous prime is 22790099. The next prime is 22790147. The reversal of 22790111 is 11109722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22790111 - 2¹⁰ = 22789087 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 (22790191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11395055 + 11395056.

It is an arithmetic number, because the mean of its divisors is an integer number (11395056).

Almost surely, 2^22790111 is an apocalyptic number.

22790111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22790111 is an equidigital number, since it uses as much as digits as its factorization.

22790111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 22790111 is about 4773.8989306436. The cubic root of 22790111 is about 283.5189858996.

Adding to 22790111 its reverse (11109722), we get a palindrome (33899833).

The spelling of 22790111 in words is "twenty-two million, seven hundred ninety thousand, one hundred eleven".