12722200 has 24 divisors (see below), whose sum is σ = 29579580. Its totient is φ = 5088800.

The previous prime is 12722189. The next prime is 12722219. The reversal of 12722200 is 222721.

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, 31606 + ... + 32005.

Almost surely, 2^12722200 is an apocalyptic number.

12722200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12722200 is an abundant number, since it is smaller than the sum of its proper divisors (16857380).

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

12722200 is a wasteful number, since it uses less digits than its factorization.

12722200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63627 (or 63618 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 12722200 is about 3566.8193113753. The cubic root of 12722200 is about 233.4465210486.

Adding to 12722200 its reverse (222721), we get a palindrome (12944921).

The spelling of 12722200 in words is "twelve million, seven hundred twenty-two thousand, two hundred".