12220223 has 8 divisors (see below), whose sum is σ = 12694800. Its totient is φ = 11749248.

The previous prime is 12220217. The next prime is 12220237. The reversal of 12220223 is 32202221.

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 12220223 - 2¹⁴ = 12203839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220198 and 12220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220253) 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, 7463 + ... + 8951.

It is an arithmetic number, because the mean of its divisors is an integer number (1586850).

Almost surely, 2^12220223 is an apocalyptic number.

12220223 is a deficient number, since it is larger than the sum of its proper divisors (474577).

12220223 is a wasteful number, since it uses less digits than its factorization.

12220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 12220223 is about 3495.7435546676. The cubic root of 12220223 is about 230.3348807958.

Adding to 12220223 its reverse (32202221), we get a palindrome (44422444).

The spelling of 12220223 in words is "twelve million, two hundred twenty thousand, two hundred twenty-three".