12224250 has 64 divisors (see below), whose sum is σ = 33920640. Its totient is φ = 3258000.

The previous prime is 12224221. The next prime is 12224257. The reversal of 12224250 is 5242221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12224257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5845 + ... + 7655.

It is an arithmetic number, because the mean of its divisors is an integer number (530010).

Almost surely, 2^12224250 is an apocalyptic number.

12224250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12224250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16960320).

12224250 is an abundant number, since it is smaller than the sum of its proper divisors (21696390).

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

12224250 is a wasteful number, since it uses less digits than its factorization.

12224250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1821 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 12224250 is about 3496.3194934102. The cubic root of 12224250 is about 230.3601792074.

Adding to 12224250 its reverse (5242221), we get a palindrome (17466471).

The spelling of 12224250 in words is "twelve million, two hundred twenty-four thousand, two hundred fifty".