204044224422161 has 2 divisors, whose sum is σ = 204044224422162. Its totient is φ = 204044224422160.

The previous prime is 204044224422107. The next prime is 204044224422163. The reversal of 204044224422161 is 161224422440402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201572726012161 + 2471498410000 = 14197631^2 + 1572100^2 .

It is a cyclic number.

It is not a de Polignac number, because 204044224422161 - 2³⁰ = 204043150680337 is a prime.

Together with 204044224422163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204044224422163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102022112211080 + 102022112211081.

It is an arithmetic number, because the mean of its divisors is an integer number (102022112211081).

Almost surely, 2^{204044224422161} is an apocalyptic number.

It is an amenable number.

204044224422161 is a deficient number, since it is larger than the sum of its proper divisors (1).

204044224422161 is an equidigital number, since it uses as much as digits as its factorization.

204044224422161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196608, while the sum is 38.

Adding to 204044224422161 its reverse (161224422440402), we get a palindrome (365268646862563).

The spelling of 204044224422161 in words is "two hundred four trillion, forty-four billion, two hundred twenty-four million, four hundred twenty-two thousand, one hundred sixty-one".