12011321222120 has 64 divisors (see below), whose sum is σ = 29652752211840. Its totient is φ = 4342506016000.

The previous prime is 12011321222119. The next prime is 12011321222171. The reversal of 12011321222120 is 2122212311021.

12011321222120 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 = 12011321222092 and 12011321222101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78821156 + ... + 78973395.

It is an arithmetic number, because the mean of its divisors is an integer number (463324253310).

Almost surely, 2^{12011321222120} is an apocalyptic number.

12011321222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011321222120 is an abundant number, since it is smaller than the sum of its proper divisors (17641430989720).

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

12011321222120 is a wasteful number, since it uses less digits than its factorization.

12011321222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157794746 (or 157794742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12011321222120 its reverse (2122212311021), we get a palindrome (14133533533141).

The spelling of 12011321222120 in words is "twelve trillion, eleven billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty".