21200102000210 has 32 divisors (see below), whose sum is σ = 43611972981120. Its totient is φ = 7268550636672.

The previous prime is 21200102000171. The next prime is 21200102000237. The reversal of 21200102000210 is 1200020100212.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21200102000191 and 21200102000200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8610761 + ... + 10795619.

It is an arithmetic number, because the mean of its divisors is an integer number (1362874155660).

Almost surely, 2^{21200102000210} is an apocalyptic number.

21200102000210 is an abundant number, since it is smaller than the sum of its proper divisors (22411870980910).

21200102000210 is a wasteful number, since it uses less digits than its factorization.

21200102000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323490.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21200102000210 its reverse (1200020100212), we get a palindrome (22400122100422).

The spelling of 21200102000210 in words is "twenty-one trillion, two hundred billion, one hundred two million, two hundred ten", and thus it is an aban number.