22044352331 has 4 divisors (see below), whose sum is σ = 22513381152. Its totient is φ = 21575323512.

The previous prime is 22044352321. The next prime is 22044352361. The reversal of 22044352331 is 13325344022.

It is a happy number.

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 22044352331 - 2²² = 22040158027 is a prime.

It is a super-2 number, since 2×22044352331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22044352294 and 22044352303.

It is not an unprimeable number, because it can be changed into a prime (22044352301) 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, 234514340 + ... + 234514433.

It is an arithmetic number, because the mean of its divisors is an integer number (5628345288).

Almost surely, 2^22044352331 is an apocalyptic number.

22044352331 is a deficient number, since it is larger than the sum of its proper divisors (469028821).

22044352331 is an equidigital number, since it uses as much as digits as its factorization.

22044352331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469028820.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 22044352331 its reverse (13325344022), we get a palindrome (35369696353).

The spelling of 22044352331 in words is "twenty-two billion, forty-four million, three hundred fifty-two thousand, three hundred thirty-one".