43529843221201 has 2 divisors, whose sum is σ = 43529843221202. Its totient is φ = 43529843221200.

The previous prime is 43529843221169. The next prime is 43529843221253. The reversal of 43529843221201 is 10212234892534.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42398342982801 + 1131500238400 = 6511401^2 + 1063720^2 .

It is a cyclic number.

It is not a de Polignac number, because 43529843221201 - 2⁵ = 43529843221169 is a prime.

It is not a weakly prime, because it can be changed into another prime (43529843221801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21764921610600 + 21764921610601.

It is an arithmetic number, because the mean of its divisors is an integer number (21764921610601).

Almost surely, 2^{43529843221201} is an apocalyptic number.

It is an amenable number.

43529843221201 is a deficient number, since it is larger than the sum of its proper divisors (1).

43529843221201 is an equidigital number, since it uses as much as digits as its factorization.

43529843221201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 43529843221201 in words is "forty-three trillion, five hundred twenty-nine billion, eight hundred forty-three million, two hundred twenty-one thousand, two hundred one".