21323222332 has 48 divisors (see below), whose sum is σ = 40357548000. Its totient is φ = 9820882944.

The previous prime is 21323222317. The next prime is 21323222351. The reversal of 21323222332 is 23322232312.

It is a junction number, because it is equal to n+sod(n) for n = 21323222297 and 21323222306.

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, 907144 + ... + 930352.

It is an arithmetic number, because the mean of its divisors is an integer number (840782250).

Almost surely, 2^21323222332 is an apocalyptic number.

It is an amenable number.

21323222332 is a deficient number, since it is larger than the sum of its proper divisors (19034325668).

21323222332 is a wasteful number, since it uses less digits than its factorization.

21323222332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23518 (or 23516 counting only the distinct ones).

The product of its digits is 5184, while the sum is 25.

Adding to 21323222332 its reverse (23322232312), we get a palindrome (44645454644).

The spelling of 21323222332 in words is "twenty-one billion, three hundred twenty-three million, two hundred twenty-two thousand, three hundred thirty-two".