22100099 has 16 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 18301920.

The previous prime is 22100081. The next prime is 22100129. The reversal of 22100099 is 99000122.

It is not a de Polignac number, because 22100099 - 2⁸ = 22099843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22100069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25922 + ... + 26760.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^22100099 is an apocalyptic number.

22100099 is a deficient number, since it is larger than the sum of its proper divisors (4027261).

22100099 is an equidigital number, since it uses as much as digits as its factorization.

22100099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 22100099 is about 4701.0742389373. The cubic root of 22100099 is about 280.6282618755.

Adding to 22100099 its sum of digits (23), we get a palindrome (22100122).

The spelling of 22100099 in words is "twenty-two million, one hundred thousand, ninety-nine".