22100475709 has 4 divisors (see below), whose sum is σ = 23800512316. Its totient is φ = 20400439104.

The previous prime is 22100475707. The next prime is 22100475731. The reversal of 22100475709 is 90757400122.

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 5768402500 + 16332073209 = 75950^2 + 127797^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100475709 - 2¹ = 22100475707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100475707) 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, 850018284 + ... + 850018309.

It is an arithmetic number, because the mean of its divisors is an integer number (5950128079).

Almost surely, 2^22100475709 is an apocalyptic number.

It is an amenable number.

22100475709 is a deficient number, since it is larger than the sum of its proper divisors (1700036607).

22100475709 is a wasteful number, since it uses less digits than its factorization.

22100475709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700036606.

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 22100475709 in words is "twenty-two billion, one hundred million, four hundred seventy-five thousand, seven hundred nine".