22152202431 has 4 divisors (see below), whose sum is σ = 29536269912. Its totient is φ = 14768134952.

The previous prime is 22152202411. The next prime is 22152202433. The reversal of 22152202431 is 13420225122.

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 22152202431 - 2⁶ = 22152202367 is a prime.

It is a super-2 number, since 2×22152202431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152202433) 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, 3692033736 + ... + 3692033741.

It is an arithmetic number, because the mean of its divisors is an integer number (7384067478).

Almost surely, 2^22152202431 is an apocalyptic number.

22152202431 is a deficient number, since it is larger than the sum of its proper divisors (7384067481).

22152202431 is an equidigital number, since it uses as much as digits as its factorization.

22152202431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384067480.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 22152202431 its reverse (13420225122), we get a palindrome (35572427553).

The spelling of 22152202431 in words is "twenty-two billion, one hundred fifty-two million, two hundred two thousand, four hundred thirty-one".