201820200200 has 48 divisors (see below), whose sum is σ = 493928394000. Its totient is φ = 76479232320.

The previous prime is 201820200151. The next prime is 201820200203. The reversal of 201820200200 is 2002028102.

It is not an unprimeable number, because it can be changed into a prime (201820200203) 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, 26551490 + ... + 26559089.

It is an arithmetic number, because the mean of its divisors is an integer number (10290174875).

Almost surely, 2^201820200200 is an apocalyptic number.

201820200200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201820200200 is an abundant number, since it is smaller than the sum of its proper divisors (292108193800).

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

201820200200 is a wasteful number, since it uses less digits than its factorization.

201820200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53110614 (or 53110605 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201820200200 its reverse (2002028102), we get a palindrome (203822228302).

The spelling of 201820200200 in words is "two hundred one billion, eight hundred twenty million, two hundred thousand, two hundred".