12101111210012 has 48 divisors (see below), whose sum is σ = 23227661737728. Its totient is φ = 5470664190720.

The previous prime is 12101111209987. The next prime is 12101111210087. The reversal of 12101111210012 is 21001211110121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9138233 + ... + 10378319.

It is an arithmetic number, because the mean of its divisors is an integer number (483909619536).

Almost surely, 2^{12101111210012} is an apocalyptic number.

It is an amenable number.

12101111210012 is a deficient number, since it is larger than the sum of its proper divisors (11126550527716).

12101111210012 is a wasteful number, since it uses less digits than its factorization.

12101111210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241306 (or 1241304 counting only the distinct ones).

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

Adding to 12101111210012 its reverse (21001211110121), we get a palindrome (33102322320133).

The spelling of 12101111210012 in words is "twelve trillion, one hundred one billion, one hundred eleven million, two hundred ten thousand, twelve".