2112002200120 has 64 divisors (see below), whose sum is σ = 4815771408000. Its totient is φ = 833492193408.

The previous prime is 2112002200073. The next prime is 2112002200151. The reversal of 2112002200120 is 210022002112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112002200120.

It is a congruent number.

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, 2023071 + ... + 2883889.

It is an arithmetic number, because the mean of its divisors is an integer number (75246428250).

Almost surely, 2^{2112002200120} is an apocalyptic number.

2112002200120 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 2112002200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2407885704000).

2112002200120 is an abundant number, since it is smaller than the sum of its proper divisors (2703769207880).

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

2112002200120 is a wasteful number, since it uses less digits than its factorization.

2112002200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861652 (or 861648 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2112002200120 its reverse (210022002112), we get a palindrome (2322024202232).

The spelling of 2112002200120 in words is "two trillion, one hundred twelve billion, two million, two hundred thousand, one hundred twenty".