12403320221 has 8 divisors (see below), whose sum is σ = 12593620800. Its totient is φ = 12213453280.

The previous prime is 12403320199. The next prime is 12403320229. The reversal of 12403320221 is 12202330421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12403320221 - 2¹⁴ = 12403303837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12403320193 and 12403320202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403320229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50531 + ... + 165408.

It is an arithmetic number, because the mean of its divisors is an integer number (1574202600).

Almost surely, 2^12403320221 is an apocalyptic number.

It is an amenable number.

12403320221 is a deficient number, since it is larger than the sum of its proper divisors (190300579).

12403320221 is an equidigital number, since it uses as much as digits as its factorization.

12403320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216819.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12403320221 its reverse (12202330421), we get a palindrome (24605650642).

The spelling of 12403320221 in words is "twelve billion, four hundred three million, three hundred twenty thousand, two hundred twenty-one".