14143211221 has 12 divisors (see below), whose sum is σ = 14875664608. Its totient is φ = 13445211384.

The previous prime is 14143211213. The next prime is 14143211239. The reversal of 14143211221 is 12211234141.

It is not a de Polignac number, because 14143211221 - 2³ = 14143211213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14143211192 and 14143211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14143211281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4216 + ... + 168238.

Almost surely, 2^14143211221 is an apocalyptic number.

It is an amenable number.

14143211221 is a deficient number, since it is larger than the sum of its proper divisors (732453387).

14143211221 is a wasteful number, since it uses less digits than its factorization.

14143211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164232 (or 164209 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

Adding to 14143211221 its reverse (12211234141), we get a palindrome (26354445362).

The spelling of 14143211221 in words is "fourteen billion, one hundred forty-three million, two hundred eleven thousand, two hundred twenty-one".