12100000121200 has 30 divisors (see below), whose sum is σ = 29070250292144. Its totient is φ = 4840000048320.

The previous prime is 12100000121159. The next prime is 12100000121207. The reversal of 12100000121200 is 212100000121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100000121207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15124999752 + ... + 15125000551.

Almost surely, 2^{12100000121200} is an apocalyptic number.

12100000121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100000121200 is an abundant number, since it is smaller than the sum of its proper divisors (16970250170944).

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

12100000121200 is a wasteful number, since it uses less digits than its factorization.

12100000121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30250000321 (or 30250000310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12100000121200 its reverse (212100000121), we get a palindrome (12312100121321).

The spelling of 12100000121200 in words is "twelve trillion, one hundred billion, one hundred twenty-one thousand, two hundred".