2120002200 has 96 divisors (see below), whose sum is σ = 7302248400. Its totient is φ = 565332480.

The previous prime is 2120002169. The next prime is 2120002201. The reversal of 2120002200 is 22000212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120002201) by changing a digit.

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, 190897 + ... + 201696.

Almost surely, 2^2120002200 is an apocalyptic number.

2120002200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120002200 is an abundant number, since it is smaller than the sum of its proper divisors (5182246200).

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

2120002200 is a wasteful number, since it uses less digits than its factorization.

2120002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392618 (or 392603 counting only the distinct ones).

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

The square root of 2120002200 is about 46043.4816233525. The cubic root of 2120002200 is about 1284.6321020818.

Adding to 2120002200 its reverse (22000212), we get a palindrome (2142002412).

The spelling of 2120002200 in words is "two billion, one hundred twenty million, two thousand, two hundred".