21200333232 has 80 divisors (see below), whose sum is σ = 59017104608. Its totient is φ = 6519121920.

The previous prime is 21200333221. The next prime is 21200333249. The reversal of 21200333232 is 23233300212.

It is a junction number, because it is equal to n+sod(n) for n = 21200333199 and 21200333208.

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 15 ways as a sum of consecutive naturals, for example, 1084182 + ... + 1103562.

Almost surely, 2^21200333232 is an apocalyptic number.

It is an amenable number.

21200333232 is an abundant number, since it is smaller than the sum of its proper divisors (37816771376).

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

21200333232 is a wasteful number, since it uses less digits than its factorization.

21200333232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21158 (or 21152 counting only the distinct ones).

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

Adding to 21200333232 its reverse (23233300212), we get a palindrome (44433633444).

The spelling of 21200333232 in words is "twenty-one billion, two hundred million, three hundred thirty-three thousand, two hundred thirty-two".