12012101210112 has 104 divisors (see below), whose sum is σ = 32060974202304. Its totient is φ = 3999956434944.

The previous prime is 12012101210099. The next prime is 12012101210147. The reversal of 12012101210112 is 21101210121021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012101210091 and 12012101210100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11581878 + ... + 12576330.

Almost surely, 2^{12012101210112} is an apocalyptic number.

12012101210112 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 12012101210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16030487101152).

12012101210112 is an abundant number, since it is smaller than the sum of its proper divisors (20048872992192).

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

12012101210112 is an frugal number, since it uses more digits than its factorization.

12012101210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995463 (or 995441 counting only the distinct ones).

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

Adding to 12012101210112 its reverse (21101210121021), we get a palindrome (33113311331133).

The spelling of 12012101210112 in words is "twelve trillion, twelve billion, one hundred one million, two hundred ten thousand, one hundred twelve".