12011120012112 has 120 divisors (see below), whose sum is σ = 33601593628224. Its totient is φ = 3695460867072.

The previous prime is 12011120012107. The next prime is 12011120012161. The reversal of 12011120012112 is 21121002111021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12011120012091 and 12011120012100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131506653 + ... + 131597955.

Almost surely, 2^{12011120012112} is an apocalyptic number.

12011120012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011120012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16800796814112).

12011120012112 is an abundant number, since it is smaller than the sum of its proper divisors (21590473616112).

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

12011120012112 is a wasteful number, since it uses less digits than its factorization.

12011120012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107557 (or 107538 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011120012112 its reverse (21121002111021), we get a palindrome (33132122123133).

The spelling of 12011120012112 in words is "twelve trillion, eleven billion, one hundred twenty million, twelve thousand, one hundred twelve".