12100121111012 has 48 divisors (see below), whose sum is σ = 23988187238400. Its totient is φ = 5290761760800.

The previous prime is 12100121111009. The next prime is 12100121111053. The reversal of 12100121111012 is 21011112100121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26332262 + ... + 26787837.

It is an arithmetic number, because the mean of its divisors is an integer number (499753900800).

Almost surely, 2^{12100121111012} is an apocalyptic number.

It is an amenable number.

12100121111012 is a deficient number, since it is larger than the sum of its proper divisors (11888066127388).

12100121111012 is a wasteful number, since it uses less digits than its factorization.

12100121111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53120312 (or 53120310 counting only the distinct ones).

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

Adding to 12100121111012 its reverse (21011112100121), we get a palindrome (33111233211133).

The spelling of 12100121111012 in words is "twelve trillion, one hundred billion, one hundred twenty-one million, one hundred eleven thousand, twelve".