21300002200 has 48 divisors (see below), whose sum is σ = 49808843280. Its totient is φ = 8470738560.

The previous prime is 21300002189. The next prime is 21300002221. The reversal of 21300002200 is 220000312.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273204 + ... + 342403.

It is an arithmetic number, because the mean of its divisors is an integer number (1037684235).

Almost surely, 2^21300002200 is an apocalyptic number.

21300002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21300002200 is an abundant number, since it is smaller than the sum of its proper divisors (28508841080).

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

21300002200 is a wasteful number, since it uses less digits than its factorization.

21300002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615796 (or 615787 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 21300002200 its reverse (220000312), we get a palindrome (21520002512).

The spelling of 21300002200 in words is "twenty-one billion, three hundred million, two thousand, two hundred".