2130121012200 has 96 divisors (see below), whose sum is σ = 6613645970400. Its totient is φ = 567148757760.

The previous prime is 2130121012183. The next prime is 2130121012207. The reversal of 2130121012200 is 22101210312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2130121012200.

It is not an unprimeable number, because it can be changed into a prime (2130121012207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2374855 + ... + 3146454.

It is an arithmetic number, because the mean of its divisors is an integer number (68892145525).

Almost surely, 2^{2130121012200} is an apocalyptic number.

2130121012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130121012200 is an abundant number, since it is smaller than the sum of its proper divisors (4483524958200).

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

2130121012200 is a wasteful number, since it uses less digits than its factorization.

2130121012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521971 (or 5521962 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2130121012200 its reverse (22101210312), we get a palindrome (2152222222512).

The spelling of 2130121012200 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, twelve thousand, two hundred".