43220122013 has 2 divisors, whose sum is σ = 43220122014. Its totient is φ = 43220122012.

The previous prime is 43220122003. The next prime is 43220122027. The reversal of 43220122013 is 31022102234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41861978404 + 1358143609 = 204602^2 + 36853^2 .

It is a cyclic number.

It is not a de Polignac number, because 43220122013 - 2¹² = 43220117917 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 (43220122003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21610061006 + 21610061007.

It is an arithmetic number, because the mean of its divisors is an integer number (21610061007).

Almost surely, 2^43220122013 is an apocalyptic number.

It is an amenable number.

43220122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

43220122013 is an equidigital number, since it uses as much as digits as its factorization.

43220122013 is an odious number, because the sum of its binary digits is odd.

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

Adding to 43220122013 its reverse (31022102234), we get a palindrome (74242224247).

The spelling of 43220122013 in words is "forty-three billion, two hundred twenty million, one hundred twenty-two thousand, thirteen".