14271751221 has 24 divisors (see below), whose sum is σ = 23838532704. Its totient is φ = 7527955680.

The previous prime is 14271751217. The next prime is 14271751261. The reversal of 14271751221 is 12215717241.

It is not a de Polignac number, because 14271751221 - 2² = 14271751217 is a prime.

It is a super-2 number, since 2×14271751221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14271751261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3732195 + ... + 3736016.

It is an arithmetic number, because the mean of its divisors is an integer number (993272196).

Almost surely, 2^14271751221 is an apocalyptic number.

It is an amenable number.

14271751221 is a deficient number, since it is larger than the sum of its proper divisors (9566781483).

14271751221 is a wasteful number, since it uses less digits than its factorization.

14271751221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468241 (or 7468234 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The spelling of 14271751221 in words is "fourteen billion, two hundred seventy-one million, seven hundred fifty-one thousand, two hundred twenty-one".