14159794221 has 32 divisors (see below), whose sum is σ = 22090464000. Its totient is φ = 8946552384.

The previous prime is 14159794211. The next prime is 14159794339. The reversal of 14159794221 is 12249795141.

14159794221 is a `hidden beast` number, since 1 + 4 + 159 + 79 + 422 + 1 = 666.

It is not a de Polignac number, because 14159794221 - 2⁶ = 14159794157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14159794211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36906 + ... + 172283.

It is an arithmetic number, because the mean of its divisors is an integer number (690327000).

Almost surely, 2^14159794221 is an apocalyptic number.

It is an amenable number.

14159794221 is a deficient number, since it is larger than the sum of its proper divisors (7930669779).

14159794221 is a wasteful number, since it uses less digits than its factorization.

14159794221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209330 (or 209324 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 14159794221 in words is "fourteen billion, one hundred fifty-nine million, seven hundred ninety-four thousand, two hundred twenty-one".