22117507243 has 4 divisors (see below), whose sum is σ = 23818853968. Its totient is φ = 20416160520.

The previous prime is 22117507241. The next prime is 22117507259. The reversal of 22117507243 is 34270571122.

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

It is a cyclic number.

It is not a de Polignac number, because 22117507243 - 2¹ = 22117507241 is a prime.

It is a super-2 number, since 2×22117507243² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22117507199 and 22117507208.

It is not an unprimeable number, because it can be changed into a prime (22117507241) 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, 850673343 + ... + 850673368.

It is an arithmetic number, because the mean of its divisors is an integer number (5954713492).

Almost surely, 2^22117507243 is an apocalyptic number.

22117507243 is a deficient number, since it is larger than the sum of its proper divisors (1701346725).

22117507243 is a wasteful number, since it uses less digits than its factorization.

22117507243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701346724.

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 22117507243 in words is "twenty-two billion, one hundred seventeen million, five hundred seven thousand, two hundred forty-three".