12223331 has 8 divisors (see below), whose sum is σ = 12664704. Its totient is φ = 11784960.

The previous prime is 12223313. The next prime is 12223381. The reversal of 12223331 is 13332221.

12223331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12223331 - 2¹⁰ = 12222307 is a prime.

It is a super-2 number, since 2×12223331² = 298819641471122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12223381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10385 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (1583088).

Almost surely, 2^12223331 is an apocalyptic number.

12223331 is a deficient number, since it is larger than the sum of its proper divisors (441373).

12223331 is a wasteful number, since it uses less digits than its factorization.

12223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501.

The product of its digits is 216, while the sum is 17.

The square root of 12223331 is about 3496.1880670239. The cubic root of 12223331 is about 230.3544063568.

Adding to 12223331 its reverse (13332221), we get a palindrome (25555552).

The spelling of 12223331 in words is "twelve million, two hundred twenty-three thousand, three hundred thirty-one".