200404221440257 has 2 divisors, whose sum is σ = 200404221440258. Its totient is φ = 200404221440256.

The previous prime is 200404221440177. The next prime is 200404221440263. The reversal of 200404221440257 is 752044122404002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174478975484401 + 25925245955856 = 13209049^2 + 5091684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200404221440257 is a prime.

It is not a weakly prime, because it can be changed into another prime (200404221444257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100202110720128 + 100202110720129.

It is an arithmetic number, because the mean of its divisors is an integer number (100202110720129).

Almost surely, 2^{200404221440257} is an apocalyptic number.

It is an amenable number.

200404221440257 is a deficient number, since it is larger than the sum of its proper divisors (1).

200404221440257 is an equidigital number, since it uses as much as digits as its factorization.

200404221440257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 37.

Adding to 200404221440257 its reverse (752044122404002), we get a palindrome (952448343844259).

The spelling of 200404221440257 in words is "two hundred trillion, four hundred four billion, two hundred twenty-one million, four hundred forty thousand, two hundred fifty-seven".