21022330332 has 48 divisors (see below), whose sum is σ = 49245671552. Its totient is φ = 6979832640.

The previous prime is 21022330321. The next prime is 21022330361. The reversal of 21022330332 is 23303322012.

It is a junction number, because it is equal to n+sod(n) for n = 21022330299 and 21022330308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6460818 + ... + 6464070.

Almost surely, 2^21022330332 is an apocalyptic number.

It is an amenable number.

21022330332 is an abundant number, since it is smaller than the sum of its proper divisors (28223341220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022330332 is a wasteful number, since it uses less digits than its factorization.

21022330332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21022330332 its reverse (23303322012), we get a palindrome (44325652344).

The spelling of 21022330332 in words is "twenty-one billion, twenty-two million, three hundred thirty thousand, three hundred thirty-two".