12012211122200 has 48 divisors (see below), whose sum is σ = 27973509711000. Its totient is φ = 4797122065920.

The previous prime is 12012211122169. The next prime is 12012211122203. The reversal of 12012211122200 is 222111221021.

12012211122200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012211122203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48390785 + ... + 48638384.

Almost surely, 2^{12012211122200} is an apocalyptic number.

12012211122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012211122200 is an abundant number, since it is smaller than the sum of its proper divisors (15961298588800).

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

12012211122200 is a wasteful number, since it uses less digits than its factorization.

12012211122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97029804 (or 97029795 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012211122200 its reverse (222111221021), we get a palindrome (12234322343221).

The spelling of 12012211122200 in words is "twelve trillion, twelve billion, two hundred eleven million, one hundred twenty-two thousand, two hundred".