21200212200200 has 96 divisors (see below), whose sum is σ = 54068528142720. Its totient is φ = 7666575840000.

The previous prime is 21200212200187. The next prime is 21200212200221. The reversal of 21200212200200 is 200221200212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26221856 + ... + 27018255.

It is an arithmetic number, because the mean of its divisors is an integer number (563213834820).

Almost surely, 2^{21200212200200} is an apocalyptic number.

21200212200200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21200212200200 is an abundant number, since it is smaller than the sum of its proper divisors (32868315942520).

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

21200212200200 is a wasteful number, since it uses less digits than its factorization.

21200212200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53240319 (or 53240310 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21200212200200 its reverse (200221200212), we get a palindrome (21400433400412).

It can be divided in two parts, 21200212 and 200200, that added together give a palindrome (21400412).

The spelling of 21200212200200 in words is "twenty-one trillion, two hundred billion, two hundred twelve million, two hundred thousand, two hundred".