12228700 has 36 divisors (see below), whose sum is σ = 28951272. Its totient is φ = 4446400.

The previous prime is 12228683. The next prime is 12228707. The reversal of 12228700 is 782221.

12228700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12228700² = 299082207380000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4459 + ... + 6658.

It is an arithmetic number, because the mean of its divisors is an integer number (804202).

Almost surely, 2^12228700 is an apocalyptic number.

12228700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12228700 is an abundant number, since it is smaller than the sum of its proper divisors (16722572).

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

12228700 is a wasteful number, since it uses less digits than its factorization.

12228700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142 (or 11135 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12228700 is about 3496.9558189946. The cubic root of 12228700 is about 230.3881285277.

The spelling of 12228700 in words is "twelve million, two hundred twenty-eight thousand, seven hundred".