22905011 has 2 divisors, whose sum is σ = 22905012. Its totient is φ = 22905010.

The previous prime is 22904989. The next prime is 22905017. The reversal of 22905011 is 11050922.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22905011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22905017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11452505 + 11452506.

It is an arithmetic number, because the mean of its divisors is an integer number (11452506).

Almost surely, 2^22905011 is an apocalyptic number.

22905011 is a deficient number, since it is larger than the sum of its proper divisors (1).

22905011 is an equidigital number, since it uses as much as digits as its factorization.

22905011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 22905011 is about 4785.9179892681. The cubic root of 22905011 is about 283.9946562176.

Adding to 22905011 its reverse (11050922), we get a palindrome (33955933).

The spelling of 22905011 in words is "twenty-two million, nine hundred five thousand, eleven".