21022330024 has 16 divisors (see below), whose sum is σ = 39423906900. Its totient is φ = 10509288192.

The previous prime is 21022330009. The next prime is 21022330031. The reversal of 21022330024 is 42003322012.

It can be written as a sum of positive squares in 2 ways, for example, as 20629576900 + 392753124 = 143630^2 + 19818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21022329983 and 21022330010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186417 + ... + 277120.

Almost surely, 2^21022330024 is an apocalyptic number.

It is an amenable number.

21022330024 is a deficient number, since it is larger than the sum of its proper divisors (18401576876).

21022330024 is a wasteful number, since it uses less digits than its factorization.

21022330024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469212 (or 469208 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21022330024 its reverse (42003322012), we get a palindrome (63025652036).

The spelling of 21022330024 in words is "twenty-one billion, twenty-two million, three hundred thirty thousand, twenty-four".