12122200 has 24 divisors (see below), whose sum is σ = 28184580. Its totient is φ = 4848800.

The previous prime is 12122191. The next prime is 12122221. The reversal of 12122200 is 222121.

12122200 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 (10).

It is a congruent number.

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, 30106 + ... + 30505.

Almost surely, 2^12122200 is an apocalyptic number.

12122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122200 is an abundant number, since it is smaller than the sum of its proper divisors (16062380).

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

12122200 is a wasteful number, since it uses less digits than its factorization.

12122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60627 (or 60618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12122200 is about 3481.6949895130. The cubic root of 12122200 is about 229.7173591768.

Adding to 12122200 its reverse (222121), we get a palindrome (12344321).

The spelling of 12122200 in words is "twelve million, one hundred twenty-two thousand, two hundred".