12221303 has 8 divisors (see below), whose sum is σ = 12881376. Its totient is φ = 11572000.

The previous prime is 12221273. The next prime is 12221327. The reversal of 12221303 is 30312221.

It is a happy number.

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 12221303 - 2¹⁸ = 11959159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308 + ... + 4953.

It is an arithmetic number, because the mean of its divisors is an integer number (1610172).

Almost surely, 2^12221303 is an apocalyptic number.

12221303 is a deficient number, since it is larger than the sum of its proper divisors (660073).

12221303 is a wasteful number, since it uses less digits than its factorization.

12221303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385.

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

The square root of 12221303 is about 3495.8980248285. The cubic root of 12221303 is about 230.3416661151.

Adding to 12221303 its reverse (30312221), we get a palindrome (42533524).

The spelling of 12221303 in words is "twelve million, two hundred twenty-one thousand, three hundred three".