144403310221 has 2 divisors, whose sum is σ = 144403310222. Its totient is φ = 144403310220.

The previous prime is 144403310213. The next prime is 144403310267. The reversal of 144403310221 is 122013304441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114657409321 + 29745900900 = 338611^2 + 172470^2 .

It is a cyclic number.

It is not a de Polignac number, because 144403310221 - 2³ = 144403310213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144403310281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72201655110 + 72201655111.

It is an arithmetic number, because the mean of its divisors is an integer number (72201655111).

Almost surely, 2^144403310221 is an apocalyptic number.

It is an amenable number.

144403310221 is a deficient number, since it is larger than the sum of its proper divisors (1).

144403310221 is an equidigital number, since it uses as much as digits as its factorization.

144403310221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 144403310221 its reverse (122013304441), we get a palindrome (266416614662).

The spelling of 144403310221 in words is "one hundred forty-four billion, four hundred three million, three hundred ten thousand, two hundred twenty-one".