12223628 has 12 divisors (see below), whose sum is σ = 21599760. Its totient is φ = 6052272.

The previous prime is 12223621. The next prime is 12223633. The reversal of 12223628 is 82632221.

It is a junction number, because it is equal to n+sod(n) for n = 12223597 and 12223606.

It is not an unprimeable number, because it can be changed into a prime (12223621) 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, 14423 + ... + 15246.

It is an arithmetic number, because the mean of its divisors is an integer number (1799980).

Almost surely, 2^12223628 is an apocalyptic number.

It is an amenable number.

12223628 is a deficient number, since it is larger than the sum of its proper divisors (9376132).

12223628 is a wasteful number, since it uses less digits than its factorization.

12223628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29776 (or 29774 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 12223628 is about 3496.2305415976. The cubic root of 12223628 is about 230.3562720431.

Adding to 12223628 its reverse (82632221), we get a palindrome (94855849).

The spelling of 12223628 in words is "twelve million, two hundred twenty-three thousand, six hundred twenty-eight".