22135504243 has 4 divisors (see below), whose sum is σ = 22309799680. Its totient is φ = 21961208808.

The previous prime is 22135504201. The next prime is 22135504249. The reversal of 22135504243 is 34240553122.

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

It is a de Polignac number, because none of the positive numbers 2^k-22135504243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22135504249) 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, 87147528 + ... + 87147781.

It is an arithmetic number, because the mean of its divisors is an integer number (5577449920).

Almost surely, 2^22135504243 is an apocalyptic number.

22135504243 is a deficient number, since it is larger than the sum of its proper divisors (174295437).

22135504243 is a wasteful number, since it uses less digits than its factorization.

22135504243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174295436.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 22135504243 in words is "twenty-two billion, one hundred thirty-five million, five hundred four thousand, two hundred forty-three".