12011101111220 has 24 divisors (see below), whose sum is σ = 26550855088800. Its totient is φ = 4551575157792.

The previous prime is 12011101111171. The next prime is 12011101111237. The reversal of 12011101111220 is 2211110111021.

12011101111220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12011101111195 and 12011101111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15804080030 + ... + 15804080789.

It is an arithmetic number, because the mean of its divisors is an integer number (1106285628700).

Almost surely, 2^{12011101111220} is an apocalyptic number.

12011101111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011101111220 is an abundant number, since it is smaller than the sum of its proper divisors (14539753977580).

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

12011101111220 is a wasteful number, since it uses less digits than its factorization.

12011101111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31608160847 (or 31608160845 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12011101111220 its reverse (2211110111021), we get a palindrome (14222211222241).

The spelling of 12011101111220 in words is "twelve trillion, eleven billion, one hundred one million, one hundred eleven thousand, two hundred twenty".