12222200 has 48 divisors (see below), whose sum is σ = 29663280. Its totient is φ = 4674560.

The previous prime is 12222151. The next prime is 12222211. The reversal of 12222200 is 222221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3272 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (617985).

Almost surely, 2^12222200 is an apocalyptic number.

12222200 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 12222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14831640).

12222200 is an abundant number, since it is smaller than the sum of its proper divisors (17441080).

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

12222200 is a wasteful number, since it uses less digits than its factorization.

12222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12222200 is about 3496.0263156904. The cubic root of 12222200 is about 230.3473013958.

Adding to 12222200 its reverse (222221), we get a palindrome (12444421).

It can be divided in two parts, 122 and 22200, that added together give a palindrome (22322).

The spelling of 12222200 in words is "twelve million, two hundred twenty-two thousand, two hundred".