12111220220012 has 12 divisors (see below), whose sum is σ = 21645585074400. Its totient is φ = 5926767341616.

The previous prime is 12111220220003. The next prime is 12111220220017. The reversal of 12111220220012 is 21002202211121.

12111220220012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12111220220017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32210691887 + ... + 32210692262.

It is an arithmetic number, because the mean of its divisors is an integer number (1803798756200).

Almost surely, 2^{12111220220012} is an apocalyptic number.

It is an amenable number.

12111220220012 is a deficient number, since it is larger than the sum of its proper divisors (9534364854388).

12111220220012 is a wasteful number, since it uses less digits than its factorization.

12111220220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64421384200 (or 64421384198 counting only the distinct ones).

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

Adding to 12111220220012 its reverse (21002202211121), we get a palindrome (33113422431133).

The spelling of 12111220220012 in words is "twelve trillion, one hundred eleven billion, two hundred twenty million, two hundred twenty thousand, twelve".