12228300 has 144 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 2790720.

The previous prime is 12228299. The next prime is 12228311. The reversal of 12228300 is 382221.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18577 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^12228300 is an apocalyptic number.

12228300 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 12228300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

12228300 is an abundant number, since it is smaller than the sum of its proper divisors (32768820).

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

12228300 is a wasteful number, since it uses less digits than its factorization.

12228300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12228300 is about 3496.8986259256. The cubic root of 12228300 is about 230.3856165066.

The spelling of 12228300 in words is "twelve million, two hundred twenty-eight thousand, three hundred".