12022200 has 72 divisors (see below), whose sum is σ = 40380600. Its totient is φ = 3205440.

The previous prime is 12022181. The next prime is 12022223. The reversal of 12022200 is 222021.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1540 + ... + 5139.

Almost surely, 2^12022200 is an apocalyptic number.

12022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022200 is an abundant number, since it is smaller than the sum of its proper divisors (28358400).

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

12022200 is a wasteful number, since it uses less digits than its factorization.

12022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701 (or 6689 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 12022200 is about 3467.3044285150. The cubic root of 12022200 is about 229.0839429614.

Adding to 12022200 its reverse (222021), we get a palindrome (12244221).

The spelling of 12022200 in words is "twelve million, twenty-two thousand, two hundred".