43411442221 has 4 divisors (see below), whose sum is σ = 49613076832. Its totient is φ = 37209807612.

The previous prime is 43411442213. The next prime is 43411442227. The reversal of 43411442221 is 12224411434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43411442221 - 2³ = 43411442213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43411442221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43411442227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100817295 + ... + 3100817308.

It is an arithmetic number, because the mean of its divisors is an integer number (12403269208).

Almost surely, 2^43411442221 is an apocalyptic number.

It is an amenable number.

43411442221 is a deficient number, since it is larger than the sum of its proper divisors (6201634611).

43411442221 is an equidigital number, since it uses as much as digits as its factorization.

43411442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201634610.

The product of its digits is 6144, while the sum is 28.

Adding to 43411442221 its reverse (12224411434), we get a palindrome (55635853655).

The spelling of 43411442221 in words is "forty-three billion, four hundred eleven million, four hundred forty-two thousand, two hundred twenty-one".