201112440012 has 72 divisors (see below), whose sum is σ = 555157354752. Its totient is φ = 60880024800.

The previous prime is 201112440007. The next prime is 201112440019. The reversal of 201112440012 is 210044211102.

201112440012 is a `hidden beast` number, since 201 + 1 + 12 + 440 + 0 + 12 = 666.

201112440012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201112440019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120337 + ... + 645527.

It is an arithmetic number, because the mean of its divisors is an integer number (7710518816).

Almost surely, 2^201112440012 is an apocalyptic number.

201112440012 is a gapful number since it is divisible by the number (22) 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 201112440012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277578677376).

201112440012 is an abundant number, since it is smaller than the sum of its proper divisors (354044914740).

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

201112440012 is a wasteful number, since it uses less digits than its factorization.

201112440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526179 (or 526174 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201112440012 its reverse (210044211102), we get a palindrome (411156651114).

The spelling of 201112440012 in words is "two hundred one billion, one hundred twelve million, four hundred forty thousand, twelve".