22042405331 has 4 divisors (see below), whose sum is σ = 22321423200. Its totient is φ = 21763387464.

The previous prime is 22042405321. The next prime is 22042405349. The reversal of 22042405331 is 13350424022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22042405331 is a prime.

It is a super-2 number, since 2×22042405331² (a number of 21 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 22042405331.

It is not an unprimeable number, because it can be changed into a prime (22042405321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139508816 + ... + 139508973.

It is an arithmetic number, because the mean of its divisors is an integer number (5580355800).

Almost surely, 2^22042405331 is an apocalyptic number.

22042405331 is a deficient number, since it is larger than the sum of its proper divisors (279017869).

22042405331 is an equidigital number, since it uses as much as digits as its factorization.

22042405331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279017868.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 22042405331 its reverse (13350424022), we get a palindrome (35392829353).

The spelling of 22042405331 in words is "twenty-two billion, forty-two million, four hundred five thousand, three hundred thirty-one".