43334681202221 has 2 divisors, whose sum is σ = 43334681202222. Its totient is φ = 43334681202220.

The previous prime is 43334681202181. The next prime is 43334681202247. The reversal of 43334681202221 is 12220218643334.

43334681202221 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., 43073034630025 + 261646572196 = 6563005^2 + 511514^2 .

It is a cyclic number.

It is not a de Polignac number, because 43334681202221 - 2¹⁸ = 43334680940077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43334681202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21667340601110 + 21667340601111.

It is an arithmetic number, because the mean of its divisors is an integer number (21667340601111).

Almost surely, 2^{43334681202221} is an apocalyptic number.

It is an amenable number.

43334681202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

43334681202221 is an equidigital number, since it uses as much as digits as its factorization.

43334681202221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

Adding to 43334681202221 its reverse (12220218643334), we get a palindrome (55554899845555).

The spelling of 43334681202221 in words is "forty-three trillion, three hundred thirty-four billion, six hundred eighty-one million, two hundred two thousand, two hundred twenty-one".