44432442221 has 2 divisors, whose sum is σ = 44432442222. Its totient is φ = 44432442220.

The previous prime is 44432442167. The next prime is 44432442227. The reversal of 44432442221 is 12224423444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34972740100 + 9459702121 = 187010^2 + 97261^2 .

It is a cyclic number.

It is not a de Polignac number, because 44432442221 - 2⁶ = 44432442157 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 (44432442227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22216221110 + 22216221111.

It is an arithmetic number, because the mean of its divisors is an integer number (22216221111).

Almost surely, 2^44432442221 is an apocalyptic number.

It is an amenable number.

44432442221 is a deficient number, since it is larger than the sum of its proper divisors (1).

44432442221 is an equidigital number, since it uses as much as digits as its factorization.

44432442221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49152, while the sum is 32.

Adding to 44432442221 its reverse (12224423444), we get a palindrome (56656865665).

The spelling of 44432442221 in words is "forty-four billion, four hundred thirty-two million, four hundred forty-two thousand, two hundred twenty-one".