12011323201220 has 24 divisors (see below), whose sum is σ = 28827175683264. Its totient is φ = 4118167954656.

The previous prime is 12011323201159. The next prime is 12011323201243. The reversal of 12011323201220 is 2210232311021.

12011323201220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12011323201192 and 12011323201201.

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, 42897582722 + ... + 42897583001.

It is an arithmetic number, because the mean of its divisors is an integer number (1201132320136).

Almost surely, 2^{12011323201220} is an apocalyptic number.

12011323201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011323201220 is an abundant number, since it is smaller than the sum of its proper divisors (16815852482044).

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

12011323201220 is a wasteful number, since it uses less digits than its factorization.

12011323201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85795165739 (or 85795165737 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12011323201220 its reverse (2210232311021), we get a palindrome (14221555512241).

The spelling of 12011323201220 in words is "twelve trillion, eleven billion, three hundred twenty-three million, two hundred one thousand, two hundred twenty".