22042099 has 2 divisors, whose sum is σ = 22042100. Its totient is φ = 22042098.

The previous prime is 22042093. The next prime is 22042123. The reversal of 22042099 is 99024022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22042099 - 2³ = 22042091 is a prime.

It is not a weakly prime, because it can be changed into another prime (22042091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11021049 + 11021050.

It is an arithmetic number, because the mean of its divisors is an integer number (11021050).

Almost surely, 2^22042099 is an apocalyptic number.

22042099 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042099 is an equidigital number, since it uses as much as digits as its factorization.

22042099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 22042099 is about 4694.9013834158. The cubic root of 22042099 is about 280.3825510797.

The spelling of 22042099 in words is "twenty-two million, forty-two thousand, ninety-nine".