12225000 has 96 divisors (see below), whose sum is σ = 38435040. Its totient is φ = 3240000.

The previous prime is 12224981. The next prime is 12225041. The reversal of 12225000 is 52221.

12225000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 5.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74919 + ... + 75081.

It is an arithmetic number, because the mean of its divisors is an integer number (400365).

Almost surely, 2^12225000 is an apocalyptic number.

12225000 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 12225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19217520).

12225000 is an abundant number, since it is smaller than the sum of its proper divisors (26210040).

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

12225000 is an equidigital number, since it uses as much as digits as its factorization.

12225000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12225000 is about 3496.4267474094. The cubic root of 12225000 is about 230.3648902422.

Adding to 12225000 its reverse (52221), we get a palindrome (12277221).

The spelling of 12225000 in words is "twelve million, two hundred twenty-five thousand".