22209971709 has 12 divisors (see below), whose sum is σ = 29848372224. Its totient is φ = 14690028024.

The previous prime is 22209971687. The next prime is 22209971723. The reversal of 22209971709 is 90717990222.

It is not a de Polignac number, because 22209971709 - 2⁵ = 22209971677 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22209971779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181117 + ... + 277890.

It is an arithmetic number, because the mean of its divisors is an integer number (2487364352).

Almost surely, 2^22209971709 is an apocalyptic number.

It is an amenable number.

22209971709 is a deficient number, since it is larger than the sum of its proper divisors (7638400515).

22209971709 is an equidigital number, since it uses as much as digits as its factorization.

22209971709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459264 (or 459137 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 48.

The spelling of 22209971709 in words is "twenty-two billion, two hundred nine million, nine hundred seventy-one thousand, seven hundred nine".