12001201110 has 64 divisors (see below), whose sum is σ = 32081745600. Its totient is φ = 3192466176.

The previous prime is 12001201099. The next prime is 12001201111. The reversal of 12001201110 is 1110210021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12001201092 and 12001201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001201111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56092 + ... + 164768.

It is an arithmetic number, because the mean of its divisors is an integer number (501277275).

Almost surely, 2^12001201110 is an apocalyptic number.

12001201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12001201110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16040872800).

12001201110 is an abundant number, since it is smaller than the sum of its proper divisors (20080544490).

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

12001201110 is a wasteful number, since it uses less digits than its factorization.

12001201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109102 (or 109096 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12001201110 its reverse (1110210021), we get a palindrome (13111411131).

The spelling of 12001201110 in words is "twelve billion, one million, two hundred one thousand, one hundred ten".