12220312200 has 96 divisors (see below), whose sum is σ = 38273696160. Its totient is φ = 3225139200.

The previous prime is 12220312199. The next prime is 12220312243. The reversal of 12220312200 is 221302221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12220312200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46786 + ... + 163185.

It is an arithmetic number, because the mean of its divisors is an integer number (398684335).

Almost surely, 2^12220312200 is an apocalyptic number.

12220312200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220312200 is an abundant number, since it is smaller than the sum of its proper divisors (26053383960).

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

12220312200 is a wasteful number, since it uses less digits than its factorization.

12220312200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210087 (or 210078 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12220312200 its reverse (221302221), we get a palindrome (12441614421).

The spelling of 12220312200 in words is "twelve billion, two hundred twenty million, three hundred twelve thousand, two hundred".