22003323424 has 12 divisors (see below), whose sum is σ = 43319043054. Its totient is φ = 11001661696.

The previous prime is 22003323413. The next prime is 22003323427. The reversal of 22003323424 is 42432330022.

It can be written as a sum of positive squares in only one way, i.e., 18371091600 + 3632231824 = 135540^2 + 60268^2 .

It is a super-2 number, since 2×22003323424² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22003323427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343801897 + ... + 343801960.

Almost surely, 2^22003323424 is an apocalyptic number.

It is an amenable number.

22003323424 is a deficient number, since it is larger than the sum of its proper divisors (21315719630).

22003323424 is an equidigital number, since it uses as much as digits as its factorization.

22003323424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687603867 (or 687603859 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 22003323424 its reverse (42432330022), we get a palindrome (64435653446).

The spelling of 22003323424 in words is "twenty-two billion, three million, three hundred twenty-three thousand, four hundred twenty-four".