32282221 has 4 divisors (see below), whose sum is σ = 32584032. Its totient is φ = 31980412.

The previous prime is 32282219. The next prime is 32282231. The reversal of 32282221 is 12228223.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 32282221 - 2¹ = 32282219 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32282192 and 32282201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32282231) 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, 150745 + ... + 150958.

It is an arithmetic number, because the mean of its divisors is an integer number (8146008).

Almost surely, 2^32282221 is an apocalyptic number.

It is an amenable number.

32282221 is a deficient number, since it is larger than the sum of its proper divisors (301811).

32282221 is a wasteful number, since it uses less digits than its factorization.

32282221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301810.

The product of its digits is 768, while the sum is 22.

The square root of 32282221 is about 5681.7445384318. The cubic root of 32282221 is about 318.4108089403.

It can be divided in two parts, 3228222 and 1, that added together give a palindrome (3228223).

The spelling of 32282221 in words is "thirty-two million, two hundred eighty-two thousand, two hundred twenty-one".