21332203210 has 8 divisors (see below), whose sum is σ = 38397965796. Its totient is φ = 8532881280.

The previous prime is 21332203187. The next prime is 21332203213. The reversal of 21332203210 is 1230223312.

It can be written as a sum of positive squares in 2 ways, for example, as 20865513601 + 466689609 = 144449^2 + 21603^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21332203213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066610151 + ... + 1066610170.

Almost surely, 2^21332203210 is an apocalyptic number.

21332203210 is a deficient number, since it is larger than the sum of its proper divisors (17065762586).

21332203210 is a wasteful number, since it uses less digits than its factorization.

21332203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133220328.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21332203210 its reverse (1230223312), we get a palindrome (22562426522).

The spelling of 21332203210 in words is "twenty-one billion, three hundred thirty-two million, two hundred three thousand, two hundred ten".