12102111120112 has 40 divisors (see below), whose sum is σ = 26580547711760. Its totient is φ = 5291611338240.

The previous prime is 12102111120061. The next prime is 12102111120137. The reversal of 12102111120112 is 21102111120121.

It is a super-2 number, since 2×12102111120112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 7 ways as a sum of consecutive naturals, for example, 1531133589 + ... + 1531141492.

It is an arithmetic number, because the mean of its divisors is an integer number (664513692794).

Almost surely, 2^{12102111120112} is an apocalyptic number.

It is an amenable number.

12102111120112 is an abundant number, since it is smaller than the sum of its proper divisors (14478436591648).

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

12102111120112 is a wasteful number, since it uses less digits than its factorization.

12102111120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062275121 (or 3062275115 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 12102111120112 its reverse (21102111120121), we get a palindrome (33204222240233).

Subtracting 12102111120112 from its reverse (21102111120121), we obtain a palindrome (9000000000009).

The spelling of 12102111120112 in words is "twelve trillion, one hundred two billion, one hundred eleven million, one hundred twenty thousand, one hundred twelve".