222201100112200 has 144 divisors (see below), whose sum is σ = 573474663748980. Its totient is φ = 80000395200000.

The previous prime is 222201100112171. The next prime is 222201100112203. The reversal of 222201100112200 is 2211001102222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 203408580331044 + 18792519781156 = 14262138^2 + 4335034^2 .

It is not an unprimeable number, because it can be changed into a prime (222201100112203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43010571 + ... + 47898970.

Almost surely, 2^{222201100112200} is an apocalyptic number.

222201100112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201100112200 is an abundant number, since it is smaller than the sum of its proper divisors (351273563636780).

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

222201100112200 is a wasteful number, since it uses less digits than its factorization.

222201100112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90909680 (or 90909660 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222201100112200 its reverse (2211001102222), we get a palindrome (224412101214422).

The spelling of 222201100112200 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred million, one hundred twelve thousand, two hundred".