14512164516221 has 2 divisors, whose sum is σ = 14512164516222. Its totient is φ = 14512164516220.

The previous prime is 14512164516167. The next prime is 14512164516229. The reversal of 14512164516221 is 12261546121541.

14512164516221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11677187496100 + 2834977020121 = 3417190^2 + 1683739^2 .

It is a cyclic number.

It is not a de Polignac number, because 14512164516221 - 2³⁴ = 14494984647037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14512164516229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7256082258110 + 7256082258111.

It is an arithmetic number, because the mean of its divisors is an integer number (7256082258111).

Almost surely, 2^{14512164516221} is an apocalyptic number.

It is an amenable number.

14512164516221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14512164516221 is an equidigital number, since it uses as much as digits as its factorization.

14512164516221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 41.

The spelling of 14512164516221 in words is "fourteen trillion, five hundred twelve billion, one hundred sixty-four million, five hundred sixteen thousand, two hundred twenty-one".