22013422011509 has 4 divisors (see below), whose sum is σ = 22065710425260. Its totient is φ = 21961133597760.

The previous prime is 22013422011479. The next prime is 22013422011517. The reversal of 22013422011509 is 90511022431022.

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 655363107025 + 21358058904484 = 809545^2 + 4621478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22013422011509 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 (22013422011569) 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, 26144206244 + ... + 26144207085.

It is an arithmetic number, because the mean of its divisors is an integer number (5516427606315).

Almost surely, 2^{22013422011509} is an apocalyptic number.

It is an amenable number.

22013422011509 is a deficient number, since it is larger than the sum of its proper divisors (52288413751).

22013422011509 is an equidigital number, since it uses as much as digits as its factorization.

22013422011509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52288413750.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 22013422011509 in words is "twenty-two trillion, thirteen billion, four hundred twenty-two million, eleven thousand, five hundred nine".