200200202202221 has 4 divisors (see below), whose sum is σ = 215600217756252. Its totient is φ = 184800186648192.

The previous prime is 200200202202199. The next prime is 200200202202223. The reversal of 200200202202221 is 122202202002002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105403301425321 + 94796900776900 = 10266611^2 + 9736370^2 .

It is a cyclic number.

It is not a de Polignac number, because 200200202202221 - 2²² = 200200198007917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200200202202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200200202202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7700007776996 + ... + 7700007777021.

It is an arithmetic number, because the mean of its divisors is an integer number (53900054439063).

Almost surely, 2^{200200202202221} is an apocalyptic number.

It is an amenable number.

200200202202221 is a deficient number, since it is larger than the sum of its proper divisors (15400015554031).

200200202202221 is a wasteful number, since it uses less digits than its factorization.

200200202202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15400015554030.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 200200202202221 its reverse (122202202002002), we get a palindrome (322402404204223).

The spelling of 200200202202221 in words is "two hundred trillion, two hundred billion, two hundred two million, two hundred two thousand, two hundred twenty-one".