21020332002200 has 24 divisors (see below), whose sum is σ = 48872271905580. Its totient is φ = 8408132800800.

The previous prime is 21020332002199. The next prime is 21020332002203. The reversal of 21020332002200 is 220023302012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020332002203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52550829806 + ... + 52550830205.

Almost surely, 2^{21020332002200} is an apocalyptic number.

21020332002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21020332002200 is an abundant number, since it is smaller than the sum of its proper divisors (27851939903380).

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

21020332002200 is a wasteful number, since it uses less digits than its factorization.

21020332002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105101660027 (or 105101660018 counting only the distinct ones).

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

Adding to 21020332002200 its reverse (220023302012), we get a palindrome (21240355304212).

The spelling of 21020332002200 in words is "twenty-one trillion, twenty billion, three hundred thirty-two million, two thousand, two hundred".