200221100202221 has 16 divisors (see below), whose sum is σ = 229751802205824. Its totient is φ = 170923644137664.

The previous prime is 200221100202173. The next prime is 200221100202241. The reversal of 200221100202221 is 122202001122002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200221100202221 - 2⁶ = 200221100202157 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 200221100202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221100202241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53352155 + ... + 56981528.

It is an arithmetic number, because the mean of its divisors is an integer number (14359487637864).

Almost surely, 2^{200221100202221} is an apocalyptic number.

It is an amenable number.

200221100202221 is a deficient number, since it is larger than the sum of its proper divisors (29530702003603).

200221100202221 is a wasteful number, since it uses less digits than its factorization.

200221100202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110334740.

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

Adding to 200221100202221 its reverse (122202001122002), we get a palindrome (322423101324223).

The spelling of 200221100202221 in words is "two hundred trillion, two hundred twenty-one billion, one hundred million, two hundred two thousand, two hundred twenty-one".