22552111331 has 4 divisors (see below), whose sum is σ = 22775399664. Its totient is φ = 22328823000.

The previous prime is 22552111327. The next prime is 22552111339. The reversal of 22552111331 is 13311125522.

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 22552111331 - 2² = 22552111327 is a prime.

It is a super-2 number, since 2×22552111331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22552111331.

It is not an unprimeable number, because it can be changed into a prime (22552111339) 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, 111644015 + ... + 111644216.

It is an arithmetic number, because the mean of its divisors is an integer number (5693849916).

Almost surely, 2^22552111331 is an apocalyptic number.

22552111331 is a deficient number, since it is larger than the sum of its proper divisors (223288333).

22552111331 is a wasteful number, since it uses less digits than its factorization.

22552111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223288332.

The product of its digits is 1800, while the sum is 26.

Adding to 22552111331 its reverse (13311125522), we get a palindrome (35863236853).

The spelling of 22552111331 in words is "twenty-two billion, five hundred fifty-two million, one hundred eleven thousand, three hundred thirty-one".