12224500 has 48 divisors (see below), whose sum is σ = 27885312. Its totient is φ = 4672800.

The previous prime is 12224497. The next prime is 12224501. The reversal of 12224500 is 542221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224501) 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, 10969 + ... + 12031.

It is an arithmetic number, because the mean of its divisors is an integer number (580944).

Almost surely, 2^12224500 is an apocalyptic number.

12224500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12224500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13942656).

12224500 is an abundant number, since it is smaller than the sum of its proper divisors (15660812).

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

12224500 is a wasteful number, since it uses less digits than its factorization.

12224500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 12224500 is about 3496.3552451088. The cubic root of 12224500 is about 230.3617495738.

Adding to 12224500 its reverse (542221), we get a palindrome (12766721).

The spelling of 12224500 in words is "twelve million, two hundred twenty-four thousand, five hundred".