22100423209 has 4 divisors (see below), whose sum is σ = 22103337616. Its totient is φ = 22097508804.

The previous prime is 22100423141. The next prime is 22100423227. The reversal of 22100423209 is 90232400122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22100423209 - 2⁹ = 22100422697 is a prime.

It is a super-3 number, since 3×22100423209³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100423299) 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, 1445799 + ... + 1461004.

It is an arithmetic number, because the mean of its divisors is an integer number (5525834404).

Almost surely, 2^22100423209 is an apocalyptic number.

It is an amenable number.

22100423209 is a deficient number, since it is larger than the sum of its proper divisors (2914407).

22100423209 is an equidigital number, since it uses as much as digits as its factorization.

22100423209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914406.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 22100423209 in words is "twenty-two billion, one hundred million, four hundred twenty-three thousand, two hundred nine".