21200233333 has 8 divisors (see below), whose sum is σ = 22462996248. Its totient is φ = 19939213824.

The previous prime is 21200233291. The next prime is 21200233343. The reversal of 21200233333 is 33333200212.

It can be written as a sum of positive squares in 4 ways, for example, as 10168302244 + 11031931089 = 100838^2 + 105033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21200233333 - 2⁹ = 21200232821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200233343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410766 + ... + 459487.

It is an arithmetic number, because the mean of its divisors is an integer number (2807874531).

Almost surely, 2^21200233333 is an apocalyptic number.

It is an amenable number.

21200233333 is a deficient number, since it is larger than the sum of its proper divisors (1262762915).

21200233333 is a wasteful number, since it uses less digits than its factorization.

21200233333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871703.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 21200233333 its reverse (33333200212), we get a palindrome (54533433545).

The spelling of 21200233333 in words is "twenty-one billion, two hundred million, two hundred thirty-three thousand, three hundred thirty-three".