13441224421 has 2 divisors, whose sum is σ = 13441224422. Its totient is φ = 13441224420.

The previous prime is 13441224341. The next prime is 13441224493. The reversal of 13441224421 is 12442214431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11022060196 + 2419164225 = 104986^2 + 49185^2 .

It is a cyclic number.

It is not a de Polignac number, because 13441224421 - 2⁹ = 13441223909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13441224421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13441224221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6720612210 + 6720612211.

It is an arithmetic number, because the mean of its divisors is an integer number (6720612211).

Almost surely, 2^13441224421 is an apocalyptic number.

It is an amenable number.

13441224421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13441224421 is an equidigital number, since it uses as much as digits as its factorization.

13441224421 is an evil number, because the sum of its binary digits is even.

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

Adding to 13441224421 its reverse (12442214431), we get a palindrome (25883438852).

The spelling of 13441224421 in words is "thirteen billion, four hundred forty-one million, two hundred twenty-four thousand, four hundred twenty-one".