21330022024 has 16 divisors (see below), whose sum is σ = 40258653120. Its totient is φ = 10594381200.

The previous prime is 21330022013. The next prime is 21330022031. The reversal of 21330022024 is 42022003312.

It is a junction number, because it is equal to n+sod(n) for n = 21330021992 and 21330022010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8827444 + ... + 8829859.

It is an arithmetic number, because the mean of its divisors is an integer number (2516165820).

Almost surely, 2^21330022024 is an apocalyptic number.

It is an amenable number.

21330022024 is a deficient number, since it is larger than the sum of its proper divisors (18928631096).

21330022024 is a wasteful number, since it uses less digits than its factorization.

21330022024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17657460 (or 17657456 counting only the distinct ones).

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

Adding to 21330022024 its reverse (42022003312), we get a palindrome (63352025336).

The spelling of 21330022024 in words is "twenty-one billion, three hundred thirty million, twenty-two thousand, twenty-four".