12225800 has 24 divisors (see below), whose sum is σ = 28425450. Its totient is φ = 4890240.

The previous prime is 12225779. The next prime is 12225823. The reversal of 12225800 is 852221.

It can be written as a sum of positive squares in 3 ways, for example, as 5885476 + 6340324 = 2426^2 + 2518^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30365 + ... + 30764.

Almost surely, 2^12225800 is an apocalyptic number.

12225800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12225800 is an abundant number, since it is smaller than the sum of its proper divisors (16199650).

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

12225800 is a wasteful number, since it uses less digits than its factorization.

12225800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61145 (or 61136 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 12225800 is about 3496.5411480490. The cubic root of 12225800 is about 230.3699151336.

The spelling of 12225800 in words is "twelve million, two hundred twenty-five thousand, eight hundred".