12222668 has 12 divisors (see below), whose sum is σ = 21499632. Its totient is φ = 6079920.

The previous prime is 12222667. The next prime is 12222671. The reversal of 12222668 is 86622221.

It is a super-2 number, since 2×12222668² = 298787226076448, which contains 22 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12222668.

It is not an unprimeable number, because it can be changed into a prime (12222667) 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, 6968 + ... + 8543.

It is an arithmetic number, because the mean of its divisors is an integer number (1791636).

Almost surely, 2^12222668 is an apocalyptic number.

It is an amenable number.

12222668 is a deficient number, since it is larger than the sum of its proper divisors (9276964).

12222668 is a wasteful number, since it uses less digits than its factorization.

12222668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15712 (or 15710 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 12222668 is about 3496.0932481843. The cubic root of 12222668 is about 230.3502414328.

Adding to 12222668 its reverse (86622221), we get a palindrome (98844889).

The spelling of 12222668 in words is "twelve million, two hundred twenty-two thousand, six hundred sixty-eight".