12210224 has 40 divisors (see below), whose sum is σ = 26040000. Its totient is φ = 5511168.

The previous prime is 12210223. The next prime is 12210229. The reversal of 12210224 is 42201221.

It is a junction number, because it is equal to n+sod(n) for n = 12210199 and 12210208.

It is not an unprimeable number, because it can be changed into a prime (12210221) 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, 9152 + ... + 10400.

It is an arithmetic number, because the mean of its divisors is an integer number (651000).

Almost surely, 2^12210224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13020000).

12210224 is an abundant number, since it is smaller than the sum of its proper divisors (13829776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210224 is a wasteful number, since it uses less digits than its factorization.

12210224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12210224 is about 3494.3130941574. The cubic root of 12210224 is about 230.2720410554.

Adding to 12210224 its reverse (42201221), we get a palindrome (54411445).

The spelling of 12210224 in words is "twelve million, two hundred ten thousand, two hundred twenty-four".