21320333322 has 32 divisors (see below), whose sum is σ = 44501902848. Its totient is φ = 6796673136.

The previous prime is 21320333291. The next prime is 21320333339. The reversal of 21320333322 is 22333302312.

It is a super-2 number, since 2×21320333322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21320333292 and 21320333301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405993 + ... + 1421075.

It is an arithmetic number, because the mean of its divisors is an integer number (1390684464).

Almost surely, 2^21320333322 is an apocalyptic number.

21320333322 is an abundant number, since it is smaller than the sum of its proper divisors (23181569526).

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

21320333322 is a wasteful number, since it uses less digits than its factorization.

21320333322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25354.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21320333322 its reverse (22333302312), we get a palindrome (43653635634).

The spelling of 21320333322 in words is "twenty-one billion, three hundred twenty million, three hundred thirty-three thousand, three hundred twenty-two".