12302223 has 4 divisors (see below), whose sum is σ = 16402968. Its totient is φ = 8201480.

The previous prime is 12302221. The next prime is 12302233. The reversal of 12302223 is 32220321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12302223 - 2¹ = 12302221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302221) 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 3 ways as a sum of consecutive naturals, for example, 2050368 + ... + 2050373.

It is an arithmetic number, because the mean of its divisors is an integer number (4100742).

Almost surely, 2^12302223 is an apocalyptic number.

12302223 is a deficient number, since it is larger than the sum of its proper divisors (4100745).

12302223 is an equidigital number, since it uses as much as digits as its factorization.

12302223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100744.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12302223 is about 3507.4524943326. The cubic root of 12302223 is about 230.8489295403.

Adding to 12302223 its reverse (32220321), we get a palindrome (44522544).

The spelling of 12302223 in words is "twelve million, three hundred two thousand, two hundred twenty-three".