22100210120209 has 4 divisors (see below), whose sum is σ = 23800226283316. Its totient is φ = 20400193957104.

The previous prime is 22100210120201. The next prime is 22100210120213. The reversal of 22100210120209 is 90202101200122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4462352055184 + 17637858065025 = 2112428^2 + 4199745^2 .

It is not a de Polignac number, because 22100210120209 - 2³ = 22100210120201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22100210120209.

It is not an unprimeable number, because it can be changed into a prime (22100210120201) 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, 850008081534 + ... + 850008081559.

It is an arithmetic number, because the mean of its divisors is an integer number (5950056570829).

Almost surely, 2^{22100210120209} is an apocalyptic number.

It is an amenable number.

22100210120209 is a deficient number, since it is larger than the sum of its proper divisors (1700016163107).

22100210120209 is a wasteful number, since it uses less digits than its factorization.

22100210120209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700016163106.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 22100210120209 in words is "twenty-two trillion, one hundred billion, two hundred ten million, one hundred twenty thousand, two hundred nine".