21202003232 has 24 divisors (see below), whose sum is σ = 41746723200. Its totient is φ = 10599660864.

The previous prime is 21202003231. The next prime is 21202003261. The reversal of 21202003232 is 23230020212.

It is a self number, because there is not a number n which added to its sum of digits gives 21202003232.

It is not an unprimeable number, because it can be changed into a prime (21202003231) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 245369 + ... + 320327.

It is an arithmetic number, because the mean of its divisors is an integer number (1739446800).

Almost surely, 2^21202003232 is an apocalyptic number.

It is an amenable number.

21202003232 is a deficient number, since it is larger than the sum of its proper divisors (20544719968).

21202003232 is an equidigital number, since it uses as much as digits as its factorization.

21202003232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83808 (or 83800 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21202003232 its reverse (23230020212), we get a palindrome (44432023444).

The spelling of 21202003232 in words is "twenty-one billion, two hundred two million, three thousand, two hundred thirty-two".