43220221301 has 2 divisors, whose sum is σ = 43220221302. Its totient is φ = 43220221300.

The previous prime is 43220221249. The next prime is 43220221313. The reversal of 43220221301 is 10312202234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32184718801 + 11035502500 = 179401^2 + 105050^2 .

It is a cyclic number.

It is not a de Polignac number, because 43220221301 - 2¹⁴ = 43220204917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43220221321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21610110650 + 21610110651.

It is an arithmetic number, because the mean of its divisors is an integer number (21610110651).

Almost surely, 2^43220221301 is an apocalyptic number.

It is an amenable number.

43220221301 is a deficient number, since it is larger than the sum of its proper divisors (1).

43220221301 is an equidigital number, since it uses as much as digits as its factorization.

43220221301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 43220221301 its reverse (10312202234), we get a palindrome (53532423535).

The spelling of 43220221301 in words is "forty-three billion, two hundred twenty million, two hundred twenty-one thousand, three hundred one".