12003003013221 has 48 divisors (see below), whose sum is σ = 19737015921792. Its totient is φ = 6957961929600.

The previous prime is 12003003013193. The next prime is 12003003013229. The reversal of 12003003013221 is 12231030030021.

12003003013221 is a `hidden beast` number, since 1 + 200 + 300 + 30 + 132 + 2 + 1 = 666.

It is not a de Polignac number, because 12003003013221 - 2⁷ = 12003003013093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12003003013194 and 12003003013203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003003013229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59422231 + ... + 59623883.

It is an arithmetic number, because the mean of its divisors is an integer number (411187831704).

Almost surely, 2^{12003003013221} is an apocalyptic number.

12003003013221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12003003013221 is a deficient number, since it is larger than the sum of its proper divisors (7734012908571).

12003003013221 is a wasteful number, since it uses less digits than its factorization.

12003003013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227834 (or 227831 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12003003013221 its reverse (12231030030021), we get a palindrome (24234033043242).

The spelling of 12003003013221 in words is "twelve trillion, three billion, three million, thirteen thousand, two hundred twenty-one".