12220323 has 16 divisors (see below), whose sum is σ = 16935840. Its totient is φ = 7831296.

The previous prime is 12220301. The next prime is 12220333. The reversal of 12220323 is 32302221.

It is not a de Polignac number, because 12220323 - 2⁶ = 12220259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220333) 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, 9261 + ... + 10497.

It is an arithmetic number, because the mean of its divisors is an integer number (1058490).

Almost surely, 2^12220323 is an apocalyptic number.

12220323 is a deficient number, since it is larger than the sum of its proper divisors (4715517).

12220323 is a wasteful number, since it uses less digits than its factorization.

12220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366.

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

The square root of 12220323 is about 3495.7578577470. The cubic root of 12220323 is about 230.3355090829.

Adding to 12220323 its reverse (32302221), we get a palindrome (44522544).

It can be divided in two parts, 12 and 220323, that multiplied together give a square (2643876 = 1626²).

The spelling of 12220323 in words is "twelve million, two hundred twenty thousand, three hundred twenty-three".