14256420221 has 8 divisors (see below), whose sum is σ = 14461193088. Its totient is φ = 14051758000.

The previous prime is 14256420193. The next prime is 14256420259. The reversal of 14256420221 is 12202465241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14256420221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14256420121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252011 + ... + 303351.

It is an arithmetic number, because the mean of its divisors is an integer number (1807649136).

Almost surely, 2^14256420221 is an apocalyptic number.

It is an amenable number.

14256420221 is a deficient number, since it is larger than the sum of its proper divisors (204772867).

14256420221 is an equidigital number, since it uses as much as digits as its factorization.

14256420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55323.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 14256420221 its reverse (12202465241), we get a palindrome (26458885462).

The spelling of 14256420221 in words is "fourteen billion, two hundred fifty-six million, four hundred twenty thousand, two hundred twenty-one".