14224433401721 has 2 divisors, whose sum is σ = 14224433401722. Its totient is φ = 14224433401720.

The previous prime is 14224433401709. The next prime is 14224433401729. The reversal of 14224433401721 is 12710433442241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11730042757225 + 2494390644496 = 3424915^2 + 1579364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14224433401721 is a prime.

It is not a weakly prime, because it can be changed into another prime (14224433401729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7112216700860 + 7112216700861.

It is an arithmetic number, because the mean of its divisors is an integer number (7112216700861).

Almost surely, 2^{14224433401721} is an apocalyptic number.

It is an amenable number.

14224433401721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14224433401721 is an equidigital number, since it uses as much as digits as its factorization.

14224433401721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 38.

Adding to 14224433401721 its reverse (12710433442241), we get a palindrome (26934866843962).

The spelling of 14224433401721 in words is "fourteen trillion, two hundred twenty-four billion, four hundred thirty-three million, four hundred one thousand, seven hundred twenty-one".