12111012200100 has 144 divisors (see below), whose sum is σ = 38710642360320. Its totient is φ = 2898838300800.

The previous prime is 12111012200099. The next prime is 12111012200123. The reversal of 12111012200100 is 100221011121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22967172 + ... + 23488571.

It is an arithmetic number, because the mean of its divisors is an integer number (268823905280).

Almost surely, 2^{12111012200100} is an apocalyptic number.

12111012200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111012200100 is an abundant number, since it is smaller than the sum of its proper divisors (26599630160220).

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

12111012200100 is a wasteful number, since it uses less digits than its factorization.

12111012200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46455850 (or 46455843 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12111012200100 its reverse (100221011121), we get a palindrome (12211233211221).

The spelling of 12111012200100 in words is "twelve trillion, one hundred eleven billion, twelve million, two hundred thousand, one hundred".