12101112110112 has 48 divisors (see below), whose sum is σ = 31766363852832. Its totient is φ = 4033584092160.

The previous prime is 12101112110083. The next prime is 12101112110117. The reversal of 12101112110112 is 21101121110121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 12101112110091 and 12101112110100.

It is not an unprimeable number, because it can be changed into a prime (12101112110117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400787 + ... + 5115117.

It is an arithmetic number, because the mean of its divisors is an integer number (661799246934).

Almost surely, 2^{12101112110112} is an apocalyptic number.

12101112110112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12101112110112 is an abundant number, since it is smaller than the sum of its proper divisors (19665251742720).

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

12101112110112 is a wasteful number, since it uses less digits than its factorization.

12101112110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748281 (or 3748273 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12101112110112 its reverse (21101121110121), we get a palindrome (33202233220233).

Subtracting 12101112110112 from its reverse (21101121110121), we obtain a palindrome (9000009000009).

The spelling of 12101112110112 in words is "twelve trillion, one hundred one billion, one hundred twelve million, one hundred ten thousand, one hundred twelve".