41440143221 has 2 divisors, whose sum is σ = 41440143222. Its totient is φ = 41440143220.

The previous prime is 41440143181. The next prime is 41440143259. The reversal of 41440143221 is 12234104414.

41440143221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41437080721 + 3062500 = 203561^2 + 1750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41440143221 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 (41440143281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20720071610 + 20720071611.

It is an arithmetic number, because the mean of its divisors is an integer number (20720071611).

Almost surely, 2^41440143221 is an apocalyptic number.

It is an amenable number.

41440143221 is a deficient number, since it is larger than the sum of its proper divisors (1).

41440143221 is an equidigital number, since it uses as much as digits as its factorization.

41440143221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 41440143221 its reverse (12234104414), we get a palindrome (53674247635).

The spelling of 41440143221 in words is "forty-one billion, four hundred forty million, one hundred forty-three thousand, two hundred twenty-one".