200211200120221 has 2 divisors, whose sum is σ = 200211200120222. Its totient is φ = 200211200120220.

The previous prime is 200211200120219. The next prime is 200211200120237. The reversal of 200211200120221 is 122021002112002.

It is a happy number.

It is an a-pointer prime, because the next prime (200211200120237) can be obtained adding 200211200120221 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149123443215321 + 51087756904900 = 12211611^2 + 7147570^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211200120221 - 2¹ = 200211200120219 is a prime.

Together with 200211200120219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 200211200120195 and 200211200120204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200211200120291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105600060110 + 100105600060111.

It is an arithmetic number, because the mean of its divisors is an integer number (100105600060111).

Almost surely, 2^{200211200120221} is an apocalyptic number.

It is an amenable number.

200211200120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211200120221 is an equidigital number, since it uses as much as digits as its factorization.

200211200120221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 200211200120221 its reverse (122021002112002), we get a palindrome (322232202232223).

The spelling of 200211200120221 in words is "two hundred trillion, two hundred eleven billion, two hundred million, one hundred twenty thousand, two hundred twenty-one".