21080600200 has 48 divisors (see below), whose sum is σ = 53468073360. Its totient is φ = 7665672000.

The previous prime is 21080600197. The next prime is 21080600209. The reversal of 21080600200 is 200608012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21080600209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4788846 + ... + 4793245.

It is an arithmetic number, because the mean of its divisors is an integer number (1113918195).

Almost surely, 2^21080600200 is an apocalyptic number.

21080600200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21080600200 is an abundant number, since it is smaller than the sum of its proper divisors (32387473160).

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

21080600200 is a wasteful number, since it uses less digits than its factorization.

21080600200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582118 (or 9582109 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The spelling of 21080600200 in words is "twenty-one billion, eighty million, six hundred thousand, two hundred".