12222223 has 16 divisors (see below), whose sum is σ = 14083776. Its totient is φ = 10517760.

The previous prime is 12222211. The next prime is 12222241. The reversal of 12222223 is 32222221.

It is a cyclic number.

It is not a de Polignac number, because 12222223 - 2¹⁷ = 12091151 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 12222197 and 12222206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222283) 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, 11761 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (880236).

Almost surely, 2^12222223 is an apocalyptic number.

12222223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12222223 is a deficient number, since it is larger than the sum of its proper divisors (1861553).

12222223 is a wasteful number, since it uses less digits than its factorization.

12222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its digits is 192, while the sum is 16.

The square root of 12222223 is about 3496.0296051378. The cubic root of 12222223 is about 230.3474458865.

Adding to 12222223 its reverse (32222221), we get a palindrome (44444444).

The spelling of 12222223 in words is "twelve million, two hundred twenty-two thousand, two hundred twenty-three".