22222099 has 4 divisors (see below), whose sum is σ = 22738936. Its totient is φ = 21705264.

The previous prime is 22222097. The next prime is 22222129. The reversal of 22222099 is 99022222.

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

It is a cyclic number.

It is not a de Polignac number, because 22222099 - 2¹ = 22222097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258354 + ... + 258439.

It is an arithmetic number, because the mean of its divisors is an integer number (5684734).

Almost surely, 2^22222099 is an apocalyptic number.

22222099 is a deficient number, since it is larger than the sum of its proper divisors (516837).

22222099 is an equidigital number, since it uses as much as digits as its factorization.

22222099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516836.

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

The square root of 22222099 is about 4714.0321382019. The cubic root of 22222099 is about 281.1437021181.

The spelling of 22222099 in words is "twenty-two million, two hundred twenty-two thousand, ninety-nine".