32241221 has 4 divisors (see below), whose sum is σ = 32375244. Its totient is φ = 32107200.

The previous prime is 32241203. The next prime is 32241257. The reversal of 32241221 is 12214223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26061025 + 6180196 = 5105^2 + 2486^2 .

It is a cyclic number.

It is not a de Polignac number, because 32241221 - 2¹⁴ = 32224837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32241221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32241281) 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, 66650 + ... + 67131.

It is an arithmetic number, because the mean of its divisors is an integer number (8093811).

Almost surely, 2^32241221 is an apocalyptic number.

It is an amenable number.

32241221 is a deficient number, since it is larger than the sum of its proper divisors (134023).

32241221 is a wasteful number, since it uses less digits than its factorization.

32241221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134022.

The product of its digits is 192, while the sum is 17.

The square root of 32241221 is about 5678.1353453401. The cubic root of 32241221 is about 318.2759527312.

Adding to 32241221 its reverse (12214223), we get a palindrome (44455444).

The spelling of 32241221 in words is "thirty-two million, two hundred forty-one thousand, two hundred twenty-one".