204741221941 has 2 divisors, whose sum is σ = 204741221942. Its totient is φ = 204741221940.

The previous prime is 204741221939. The next prime is 204741221983. The reversal of 204741221941 is 149122147402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168965390916 + 35775831025 = 411054^2 + 189145^2 .

It is a cyclic number.

It is not a de Polignac number, because 204741221941 - 2¹ = 204741221939 is a prime.

Together with 204741221939, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 204741221941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204741291941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102370610970 + 102370610971.

It is an arithmetic number, because the mean of its divisors is an integer number (102370610971).

Almost surely, 2^204741221941 is an apocalyptic number.

It is an amenable number.

204741221941 is a deficient number, since it is larger than the sum of its proper divisors (1).

204741221941 is an equidigital number, since it uses as much as digits as its factorization.

204741221941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 204741221941 in words is "two hundred four billion, seven hundred forty-one million, two hundred twenty-one thousand, nine hundred forty-one".