32543112221 has 4 divisors (see below), whose sum is σ = 33235518912. Its totient is φ = 31850705532.

The previous prime is 32543112179. The next prime is 32543112233. The reversal of 32543112221 is 12221134523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12221134523 = 13 ⋅940087271.

It is a cyclic number.

It is not a de Polignac number, because 32543112221 - 2¹⁰ = 32543111197 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 (32543112271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346203275 + ... + 346203368.

It is an arithmetic number, because the mean of its divisors is an integer number (8308879728).

Almost surely, 2^32543112221 is an apocalyptic number.

It is an amenable number.

32543112221 is a deficient number, since it is larger than the sum of its proper divisors (692406691).

32543112221 is an equidigital number, since it uses as much as digits as its factorization.

32543112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692406690.

The product of its digits is 2880, while the sum is 26.

Adding to 32543112221 its reverse (12221134523), we get a palindrome (44764246744).

The spelling of 32543112221 in words is "thirty-two billion, five hundred forty-three million, one hundred twelve thousand, two hundred twenty-one".