12001121110220 has 48 divisors (see below), whose sum is σ = 27658109138688. Its totient is φ = 4337912026560.

The previous prime is 12001121110201. The next prime is 12001121110261. The reversal of 12001121110220 is 2201112110021.

12001121110220 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 = 12001121110195 and 12001121110204.

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, 163288262 + ... + 163361741.

It is an arithmetic number, because the mean of its divisors is an integer number (576210607056).

Almost surely, 2^{12001121110220} is an apocalyptic number.

12001121110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001121110220 is an abundant number, since it is smaller than the sum of its proper divisors (15656988028468).

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

12001121110220 is a wasteful number, since it uses less digits than its factorization.

12001121110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326650190 (or 326650188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12001121110220 its reverse (2201112110021), we get a palindrome (14202233220241).

The spelling of 12001121110220 in words is "twelve trillion, one billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty".