13532312221 has 8 divisors (see below), whose sum is σ = 14248626080. Its totient is φ = 12816407088.

The previous prime is 13532312219. The next prime is 13532312249. The reversal of 13532312221 is 12221323531.

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

It is a cyclic number.

It is not a de Polignac number, because 13532312221 - 2¹ = 13532312219 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 (13532318221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33006 + ... + 167791.

It is an arithmetic number, because the mean of its divisors is an integer number (1781078260).

Almost surely, 2^13532312221 is an apocalyptic number.

It is an amenable number.

13532312221 is a deficient number, since it is larger than the sum of its proper divisors (716313859).

13532312221 is a wasteful number, since it uses less digits than its factorization.

13532312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204363.

The product of its digits is 2160, while the sum is 25.

Adding to 13532312221 its reverse (12221323531), we get a palindrome (25753635752).

The spelling of 13532312221 in words is "thirteen billion, five hundred thirty-two million, three hundred twelve thousand, two hundred twenty-one".