22104091 has 2 divisors, whose sum is σ = 22104092. Its totient is φ = 22104090.

The previous prime is 22104073. The next prime is 22104113. The reversal of 22104091 is 19040122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22104091 - 2⁹ = 22103579 is a prime.

It is not a weakly prime, because it can be changed into another prime (22104041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11052045 + 11052046.

It is an arithmetic number, because the mean of its divisors is an integer number (11052046).

Almost surely, 2^22104091 is an apocalyptic number.

22104091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22104091 is an equidigital number, since it uses as much as digits as its factorization.

22104091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 22104091 is about 4701.4988035732. The cubic root of 22104091 is about 280.6451577361.

The spelling of 22104091 in words is "twenty-two million, one hundred four thousand, ninety-one".