12011201133312 has 144 divisors (see below), whose sum is σ = 33857196936192. Its totient is φ = 3767167303680.

The previous prime is 12011201133289. The next prime is 12011201133317. The reversal of 12011201133312 is 21333110211021.

It is not an unprimeable number, because it can be changed into a prime (12011201133317) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47279653 + ... + 47533019.

It is an arithmetic number, because the mean of its divisors is an integer number (235119423168).

Almost surely, 2^{12011201133312} is an apocalyptic number.

12011201133312 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 12011201133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16928598468096).

12011201133312 is an abundant number, since it is smaller than the sum of its proper divisors (21845995802880).

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

12011201133312 is a wasteful number, since it uses less digits than its factorization.

12011201133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257034 (or 257020 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12011201133312 its reverse (21333110211021), we get a palindrome (33344311344333).

The spelling of 12011201133312 in words is "twelve trillion, eleven billion, two hundred one million, one hundred thirty-three thousand, three hundred twelve".