12111201220000 has 60 divisors (see below), whose sum is σ = 29795371730586. Its totient is φ = 4844480480000.

The previous prime is 12111201219979. The next prime is 12111201220007. The reversal of 12111201220000 is 2210211121.

12111201220000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 570151847056 + 11541049372944 = 755084^2 + 3397212^2 .

It is not an unprimeable number, because it can be changed into a prime (12111201220007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 302760031 + ... + 302800030.

Almost surely, 2^{12111201220000} is an apocalyptic number.

12111201220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111201220000 is an abundant number, since it is smaller than the sum of its proper divisors (17684170510586).

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

12111201220000 is an frugal number, since it uses more digits than its factorization.

12111201220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605560091 (or 605560068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12111201220000 its reverse (2210211121), we get a palindrome (12113411431121).

The spelling of 12111201220000 in words is "twelve trillion, one hundred eleven billion, two hundred one million, two hundred twenty thousand".