14530021221 has 16 divisors (see below), whose sum is σ = 20433920000. Its totient is φ = 9158447088.

The previous prime is 14530021217. The next prime is 14530021271. The reversal of 14530021221 is 12212003541.

It is not a de Polignac number, because 14530021221 - 2² = 14530021217 is a prime.

It is a super-2 number, since 2×14530021221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14530021211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226981 + ... + 283866.

It is an arithmetic number, because the mean of its divisors is an integer number (1277120000).

Almost surely, 2^14530021221 is an apocalyptic number.

It is an amenable number.

14530021221 is a deficient number, since it is larger than the sum of its proper divisors (5903898779).

14530021221 is a wasteful number, since it uses less digits than its factorization.

14530021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511368.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 14530021221 its reverse (12212003541), we get a palindrome (26742024762).

The spelling of 14530021221 in words is "fourteen billion, five hundred thirty million, twenty-one thousand, two hundred twenty-one".