22199799 has 4 divisors (see below), whose sum is σ = 29599736. Its totient is φ = 14799864.

The previous prime is 22199797. The next prime is 22199833. The reversal of 22199799 is 99799122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22199799 - 2¹ = 22199797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22199797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3699964 + ... + 3699969.

It is an arithmetic number, because the mean of its divisors is an integer number (7399934).

Almost surely, 2^22199799 is an apocalyptic number.

22199799 is a deficient number, since it is larger than the sum of its proper divisors (7399937).

22199799 is an equidigital number, since it uses as much as digits as its factorization.

22199799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399936.

The product of its digits is 183708, while the sum is 48.

The square root of 22199799 is about 4711.6662657705. Note that the first 3 decimals coincide. The cubic root of 22199799 is about 281.0496275531.

The spelling of 22199799 in words is "twenty-two million, one hundred ninety-nine thousand, seven hundred ninety-nine".