2121130101200 has 120 divisors (see below), whose sum is σ = 5588397605376. Its totient is φ = 767281408000.

The previous prime is 2121130101199. The next prime is 2121130101203. The reversal of 2121130101200 is 21010311212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121130101203) 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 23 ways as a sum of consecutive naturals, for example, 421577 + ... + 2102376.

Almost surely, 2^{2121130101200} is an apocalyptic number.

2121130101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121130101200 is an abundant number, since it is smaller than the sum of its proper divisors (3467267504176).

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

2121130101200 is a wasteful number, since it uses less digits than its factorization.

2121130101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524173 (or 2524162 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2121130101200 its reverse (21010311212), we get a palindrome (2142140412412).

The spelling of 2121130101200 in words is "two trillion, one hundred twenty-one billion, one hundred thirty million, one hundred one thousand, two hundred".