12011220110112 has 96 divisors (see below), whose sum is σ = 31791632773824. Its totient is φ = 3970582425600.

The previous prime is 12011220110059. The next prime is 12011220110119. The reversal of 12011220110112 is 21101102211021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×12011220110112³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011220110091 and 12011220110100.

It is not an unprimeable number, because it can be changed into a prime (12011220110119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4636828 + ... + 6747044.

It is an arithmetic number, because the mean of its divisors is an integer number (331162841394).

Almost surely, 2^{12011220110112} is an apocalyptic number.

12011220110112 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 12011220110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15895816386912).

12011220110112 is an abundant number, since it is smaller than the sum of its proper divisors (19780412663712).

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

12011220110112 is a wasteful number, since it uses less digits than its factorization.

12011220110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110722 (or 2110714 counting only the distinct ones).

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

Adding to 12011220110112 its reverse (21101102211021), we get a palindrome (33112322321133).

The spelling of 12011220110112 in words is "twelve trillion, eleven billion, two hundred twenty million, one hundred ten thousand, one hundred twelve".