200220012221 has 2 divisors, whose sum is σ = 200220012222. Its totient is φ = 200220012220.

The previous prime is 200220012193. The next prime is 200220012247. The reversal of 200220012221 is 122210022002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197481583321 + 2738428900 = 444389^2 + 52330^2 .

It is a cyclic number.

It is not a de Polignac number, because 200220012221 - 2³⁴ = 183040143037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200220012196 and 200220012205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200220011221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110006110 + 100110006111.

It is an arithmetic number, because the mean of its divisors is an integer number (100110006111).

Almost surely, 2^200220012221 is an apocalyptic number.

It is an amenable number.

200220012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200220012221 is an equidigital number, since it uses as much as digits as its factorization.

200220012221 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 14.

Adding to 200220012221 its reverse (122210022002), we get a palindrome (322430034223).

The spelling of 200220012221 in words is "two hundred billion, two hundred twenty million, twelve thousand, two hundred twenty-one".