43221120211 has 2 divisors, whose sum is σ = 43221120212. Its totient is φ = 43221120210.

The previous prime is 43221120209. The next prime is 43221120247. The reversal of 43221120211 is 11202112234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43221120211 - 2¹ = 43221120209 is a prime.

Together with 43221120209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43221124211) 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, 21610560105 + 21610560106.

It is an arithmetic number, because the mean of its divisors is an integer number (21610560106).

Almost surely, 2^43221120211 is an apocalyptic number.

43221120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

43221120211 is an equidigital number, since it uses as much as digits as its factorization.

43221120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 43221120211 its reverse (11202112234), we get a palindrome (54423232445).

The spelling of 43221120211 in words is "forty-three billion, two hundred twenty-one million, one hundred twenty thousand, two hundred eleven".