200001202022221 has 2 divisors, whose sum is σ = 200001202022222. Its totient is φ = 200001202022220.

The previous prime is 200001202022213. The next prime is 200001202022263. The reversal of 200001202022221 is 122220202100002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143471645541225 + 56529556480996 = 11977965^2 + 7518614^2 .

It is a cyclic number.

It is not a de Polignac number, because 200001202022221 - 2³ = 200001202022213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200001202022195 and 200001202022204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200001202026221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100000601011110 + 100000601011111.

It is an arithmetic number, because the mean of its divisors is an integer number (100000601011111).

Almost surely, 2^{200001202022221} is an apocalyptic number.

It is an amenable number.

200001202022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200001202022221 is an equidigital number, since it uses as much as digits as its factorization.

200001202022221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 200001202022221 its reverse (122220202100002), we get a palindrome (322221404122223).

The spelling of 200001202022221 in words is "two hundred trillion, one billion, two hundred two million, twenty-two thousand, two hundred twenty-one".