200112020202221 has 4 divisors (see below), whose sum is σ = 211883315508252. Its totient is φ = 188340724896192.

The previous prime is 200112020202217. The next prime is 200112020202233. The reversal of 200112020202221 is 122202020211002.

It is a happy number.

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 133360669179721 + 66751351022500 = 11548189^2 + 8170150^2 .

It is a cyclic number.

It is not a de Polignac number, because 200112020202221 - 2² = 200112020202217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 11771295306013 = 200112020202221 / (2 + 0 + 0 + 1 + 1 + 2 + 0 + 2 + 0 + 2 + 0 + 2 + 2 + 2 + 1).

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 200112020202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200112020202421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5885647652990 + ... + 5885647653023.

It is an arithmetic number, because the mean of its divisors is an integer number (52970828877063).

Almost surely, 2^{200112020202221} is an apocalyptic number.

It is an amenable number.

200112020202221 is a deficient number, since it is larger than the sum of its proper divisors (11771295306031).

200112020202221 is a wasteful number, since it uses less digits than its factorization.

200112020202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11771295306030.

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

Adding to 200112020202221 its reverse (122202020211002), we get a palindrome (322314040413223).

The spelling of 200112020202221 in words is "two hundred trillion, one hundred twelve billion, twenty million, two hundred two thousand, two hundred twenty-one".