12403104221 has 16 divisors (see below), whose sum is σ = 13871155200. Its totient is φ = 11038483008.

The previous prime is 12403104209. The next prime is 12403104227. The reversal of 12403104221 is 12240130421.

It is a cyclic number.

It is not a de Polignac number, because 12403104221 - 2¹⁰ = 12403103197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12403104193 and 12403104202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403104227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283805 + ... + 324578.

It is an arithmetic number, because the mean of its divisors is an integer number (866947200).

Almost surely, 2^12403104221 is an apocalyptic number.

It is an amenable number.

12403104221 is a deficient number, since it is larger than the sum of its proper divisors (1468050979).

12403104221 is a wasteful number, since it uses less digits than its factorization.

12403104221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608468.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12403104221 its reverse (12240130421), we get a palindrome (24643234642).

The spelling of 12403104221 in words is "twelve billion, four hundred three million, one hundred four thousand, two hundred twenty-one".