32221120 has 56 divisors (see below), whose sum is σ = 81253584. Its totient is φ = 12128256.

The previous prime is 32221109. The next prime is 32221151. The reversal of 32221120 is 2112223.

It is a self number, because there is not a number n which added to its sum of digits gives 32221120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479 + ... + 8401.

Almost surely, 2^32221120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40626792).

32221120 is an abundant number, since it is smaller than the sum of its proper divisors (49032464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32221120 is a wasteful number, since it uses less digits than its factorization.

32221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957 (or 5947 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 32221120 is about 5676.3650340689. The cubic root of 32221120 is about 318.2097952394.

Adding to 32221120 its reverse (2112223), we get a palindrome (34333343).

The spelling of 32221120 in words is "thirty-two million, two hundred twenty-one thousand, one hundred twenty".