14217223681 has 2 divisors, whose sum is σ = 14217223682. Its totient is φ = 14217223680.

The previous prime is 14217223667. The next prime is 14217223711. The reversal of 14217223681 is 18632271241.

14217223681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12125533456 + 2091690225 = 110116^2 + 45735^2 .

It is a cyclic number.

It is not a de Polignac number, because 14217223681 - 2⁹ = 14217223169 is a prime.

It is a super-2 number, since 2×14217223681² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14217223681.

It is not a weakly prime, because it can be changed into another prime (14217229681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7108611840 + 7108611841.

It is an arithmetic number, because the mean of its divisors is an integer number (7108611841).

Almost surely, 2^14217223681 is an apocalyptic number.

It is an amenable number.

14217223681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14217223681 is an equidigital number, since it uses as much as digits as its factorization.

14217223681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The spelling of 14217223681 in words is "fourteen billion, two hundred seventeen million, two hundred twenty-three thousand, six hundred eighty-one".