12222227 has 4 divisors (see below), whose sum is σ = 12237936. Its totient is φ = 12206520.

The previous prime is 12222211. The next prime is 12222241. The reversal of 12222227 is 72222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72222221 = 47 ⋅1536643.

It is a cyclic number.

It is not a de Polignac number, because 12222227 - 2⁴ = 12222211 is a prime.

It is a super-3 number, since 3×12222227³ (a number of 22 digits) contains 333 as substring.

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 = 12222199 and 12222208.

It is not an unprimeable number, because it can be changed into a prime (12222257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6623 + ... + 8264.

It is an arithmetic number, because the mean of its divisors is an integer number (3059484).

Almost surely, 2^12222227 is an apocalyptic number.

12222227 is a deficient number, since it is larger than the sum of its proper divisors (15709).

12222227 is an equidigital number, since it uses as much as digits as its factorization.

12222227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15708.

The product of its digits is 448, while the sum is 20.

The square root of 12222227 is about 3496.0301772153. The cubic root of 12222227 is about 230.3474710153.

Adding to 12222227 its reverse (72222221), we get a palindrome (84444448).

The spelling of 12222227 in words is "twelve million, two hundred twenty-two thousand, two hundred twenty-seven".