12001110321100 has 72 divisors (see below), whose sum is σ = 26234168905728. Its totient is φ = 4765215604800.

The previous prime is 12001110321091. The next prime is 12001110321127. The reversal of 12001110321100 is 112301110021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7338777 + ... + 8823823.

It is an arithmetic number, because the mean of its divisors is an integer number (364363457024).

Almost surely, 2^{12001110321100} is an apocalyptic number.

12001110321100 is a gapful number since it is divisible by the number (10) 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 12001110321100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13117084452864).

12001110321100 is an abundant number, since it is smaller than the sum of its proper divisors (14233058584628).

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

12001110321100 is a wasteful number, since it uses less digits than its factorization.

12001110321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485655 (or 1485648 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12001110321100 its reverse (112301110021), we get a palindrome (12113411431121).

The spelling of 12001110321100 in words is "twelve trillion, one billion, one hundred ten million, three hundred twenty-one thousand, one hundred".