21332203002 has 48 divisors (see below), whose sum is σ = 51029098848. Its totient is φ = 6386415840.

The previous prime is 21332202989. The next prime is 21332203019. The reversal of 21332203002 is 20030223312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632593 + ... + 665460.

It is an arithmetic number, because the mean of its divisors is an integer number (1063106226).

Almost surely, 2^21332203002 is an apocalyptic number.

21332203002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21332203002 is an abundant number, since it is smaller than the sum of its proper divisors (29696895846).

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

21332203002 is a wasteful number, since it uses less digits than its factorization.

21332203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298155 (or 1298152 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21332203002 its reverse (20030223312), we get a palindrome (41362426314).

The spelling of 21332203002 in words is "twenty-one billion, three hundred thirty-two million, two hundred three thousand, two".