21210011000200 has 48 divisors (see below), whose sum is σ = 53796300633360. Its totient is φ = 7712731272000.

The previous prime is 21210011000093. The next prime is 21210011000209. The reversal of 21210011000200 is 200011001212.

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

It is not an unprimeable number, because it can be changed into a prime (21210011000209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4820454846 + ... + 4820459245.

It is an arithmetic number, because the mean of its divisors is an integer number (1120756263195).

Almost surely, 2^{21210011000200} is an apocalyptic number.

21210011000200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21210011000200 is an abundant number, since it is smaller than the sum of its proper divisors (32586289633160).

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

21210011000200 is a wasteful number, since it uses less digits than its factorization.

21210011000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9640914118 (or 9640914109 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21210011000200 its reverse (200011001212), we get a palindrome (21410022001412).

The spelling of 21210011000200 in words is "twenty-one trillion, two hundred ten billion, eleven million, two hundred", and thus it is an aban number.