12203321 has 12 divisors (see below), whose sum is σ = 13325328. Its totient is φ = 11170224.

The previous prime is 12203309. The next prime is 12203327. The reversal of 12203321 is 12330221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12203321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12203296 and 12203305.

It is not an unprimeable number, because it can be changed into a prime (12203327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27326 + ... + 27768.

It is an arithmetic number, because the mean of its divisors is an integer number (1110444).

Almost surely, 2^12203321 is an apocalyptic number.

It is an amenable number.

12203321 is a deficient number, since it is larger than the sum of its proper divisors (1122007).

12203321 is a wasteful number, since it uses less digits than its factorization.

12203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12203321 is about 3493.3252067336. The cubic root of 12203321 is about 230.2286384243.

Adding to 12203321 its reverse (12330221), we get a palindrome (24533542).

The spelling of 12203321 in words is "twelve million, two hundred three thousand, three hundred twenty-one".