22109217699 has 4 divisors (see below), whose sum is σ = 29478956936. Its totient is φ = 14739478464.

The previous prime is 22109217667. The next prime is 22109217707. The reversal of 22109217699 is 99671290122.

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

It is not a de Polignac number, because 22109217699 - 2⁵ = 22109217667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22109217499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684869614 + ... + 3684869619.

It is an arithmetic number, because the mean of its divisors is an integer number (7369739234).

Almost surely, 2^22109217699 is an apocalyptic number.

22109217699 is a deficient number, since it is larger than the sum of its proper divisors (7369739237).

22109217699 is an equidigital number, since it uses as much as digits as its factorization.

22109217699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369739236.

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 22109217699 in words is "twenty-two billion, one hundred nine million, two hundred seventeen thousand, six hundred ninety-nine".