32221000240 has 160 divisors (see below), whose sum is σ = 88164482112. Its totient is φ = 10796544000.

The previous prime is 32221000177. The next prime is 32221000243. The reversal of 32221000240 is 4200012223.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (32221000243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7559710 + ... + 7563970.

Almost surely, 2^32221000240 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 32221000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44082241056).

32221000240 is an abundant number, since it is smaller than the sum of its proper divisors (55943481872).

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

32221000240 is a wasteful number, since it uses less digits than its factorization.

32221000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959 (or 4953 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 32221000240 its reverse (4200012223), we get a palindrome (36421012463).

The spelling of 32221000240 in words is "thirty-two billion, two hundred twenty-one million, two hundred forty", and thus it is an aban number.