12221221200200 has 48 divisors (see below), whose sum is σ = 28457326495860. Its totient is φ = 4881092832000.

The previous prime is 12221221200179. The next prime is 12221221200211. The reversal of 12221221200200 is 200212212221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5648161015396 + 6573060184804 = 2376586^2 + 2563798^2 .

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, 46090271 + ... + 46354670.

Almost surely, 2^{12221221200200} is an apocalyptic number.

12221221200200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221221200200 is an abundant number, since it is smaller than the sum of its proper divisors (16236105295660).

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

12221221200200 is a wasteful number, since it uses less digits than its factorization.

12221221200200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92445618 (or 92445609 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12221221200200 its reverse (200212212221), we get a palindrome (12421433412421).

The spelling of 12221221200200 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred thousand, two hundred".