12221230 has 32 divisors (see below), whose sum is σ = 25505280. Its totient is φ = 4129440.

The previous prime is 12221207. The next prime is 12221233. The reversal of 12221230 is 3212221.

It is a self number, because there is not a number n which added to its sum of digits gives 12221230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221233) 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, 3741 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (797040).

Almost surely, 2^12221230 is an apocalyptic number.

12221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221230 is an abundant number, since it is smaller than the sum of its proper divisors (13284050).

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

12221230 is a wasteful number, since it uses less digits than its factorization.

12221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12221230 is about 3495.8875840050. The cubic root of 12221230 is about 230.3412074903.

Adding to 12221230 its reverse (3212221), we get a palindrome (15433451).

Subtracting from 12221230 its reverse (3212221), we obtain a palindrome (9009009).

The spelling of 12221230 in words is "twelve million, two hundred twenty-one thousand, two hundred thirty".