200444241421 has 2 divisors, whose sum is σ = 200444241422. Its totient is φ = 200444241420.

The previous prime is 200444241377. The next prime is 200444241433. The reversal of 200444241421 is 124142444002.

It is a happy number.

200444241421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171881551396 + 28562690025 = 414586^2 + 169005^2 .

It is a cyclic number.

It is not a de Polignac number, because 200444241421 - 2¹³ = 200444233229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200444241421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200444241721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100222120710 + 100222120711.

It is an arithmetic number, because the mean of its divisors is an integer number (100222120711).

Almost surely, 2^200444241421 is an apocalyptic number.

It is an amenable number.

200444241421 is a deficient number, since it is larger than the sum of its proper divisors (1).

200444241421 is an equidigital number, since it uses as much as digits as its factorization.

200444241421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 200444241421 its reverse (124142444002), we get a palindrome (324586685423).

The spelling of 200444241421 in words is "two hundred billion, four hundred forty-four million, two hundred forty-one thousand, four hundred twenty-one".