200120002200 has 144 divisors (see below), whose sum is σ = 672514567920. Its totient is φ = 53330008320.

The previous prime is 200120002133. The next prime is 200120002217. The reversal of 200120002200 is 2200021002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

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 35 ways as a sum of consecutive naturals, for example, 2741374 + ... + 2813426.

It is an arithmetic number, because the mean of its divisors is an integer number (4670240055).

Almost surely, 2^200120002200 is an apocalyptic number.

200120002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200120002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336257283960).

200120002200 is an abundant number, since it is smaller than the sum of its proper divisors (472394565720).

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

200120002200 is a wasteful number, since it uses less digits than its factorization.

200120002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73618 (or 73606 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200120002200 its reverse (2200021002), we get a palindrome (202320023202).

The spelling of 200120002200 in words is "two hundred billion, one hundred twenty million, two thousand, two hundred".