43776222241 has 2 divisors, whose sum is σ = 43776222242. Its totient is φ = 43776222240.

The previous prime is 43776222239. The next prime is 43776222251. The reversal of 43776222241 is 14222267734.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40342731025 + 3433491216 = 200855^2 + 58596^2 .

It is a cyclic number.

It is not a de Polignac number, because 43776222241 - 2¹ = 43776222239 is a prime.

Together with 43776222239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43776222194 and 43776222203.

It is not a weakly prime, because it can be changed into another prime (43776222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21888111120 + 21888111121.

It is an arithmetic number, because the mean of its divisors is an integer number (21888111121).

Almost surely, 2^43776222241 is an apocalyptic number.

It is an amenable number.

43776222241 is a deficient number, since it is larger than the sum of its proper divisors (1).

43776222241 is an equidigital number, since it uses as much as digits as its factorization.

43776222241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 40.

Adding to 43776222241 its reverse (14222267734), we get a palindrome (57998489975).

The spelling of 43776222241 in words is "forty-three billion, seven hundred seventy-six million, two hundred twenty-two thousand, two hundred forty-one".