12100121101112 has 64 divisors (see below), whose sum is σ = 24771003586560. Its totient is φ = 5495444697600.

The previous prime is 12100121101091. The next prime is 12100121101127. The reversal of 12100121101112 is 21110112100121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587573888 + ... + 587594480.

It is an arithmetic number, because the mean of its divisors is an integer number (387046931040).

Almost surely, 2^{12100121101112} is an apocalyptic number.

It is an amenable number.

12100121101112 is an abundant number, since it is smaller than the sum of its proper divisors (12670882485448).

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

12100121101112 is a wasteful number, since it uses less digits than its factorization.

12100121101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25884 (or 25880 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12100121101112 its reverse (21110112100121), we get a palindrome (33210233201233).

Subtracting 12100121101112 from its reverse (21110112100121), we obtain a palindrome (9009990999009).

The spelling of 12100121101112 in words is "twelve trillion, one hundred billion, one hundred twenty-one million, one hundred one thousand, one hundred twelve".