12100203131200 has 84 divisors (see below), whose sum is σ = 29778836426460. Its totient is φ = 4839305175040.

The previous prime is 12100203131171. The next prime is 12100203131251. The reversal of 12100203131200 is 213130200121.

It can be written as a sum of positive squares in 6 ways, for example, as 2804338747456 + 9295864383744 = 1674616^2 + 3048912^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9427224 + ... + 10633576.

Almost surely, 2^{12100203131200} is an apocalyptic number.

12100203131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100203131200 is an abundant number, since it is smaller than the sum of its proper divisors (17678633295260).

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

12100203131200 is a wasteful number, since it uses less digits than its factorization.

12100203131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212644 (or 1212629 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12100203131200 its reverse (213130200121), we get a palindrome (12313333331321).

The spelling of 12100203131200 in words is "twelve trillion, one hundred billion, two hundred three million, one hundred thirty-one thousand, two hundred".