32020020221 has 8 divisors (see below), whose sum is σ = 36634485504. Its totient is φ = 27415599120.

The previous prime is 32020020181. The next prime is 32020020229. The reversal of 32020020221 is 12202002023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-32020020221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32020020196 and 32020020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32020020229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504210 + ... + 2516963.

It is an arithmetic number, because the mean of its divisors is an integer number (4579310688).

Almost surely, 2^32020020221 is an apocalyptic number.

It is an amenable number.

32020020221 is a deficient number, since it is larger than the sum of its proper divisors (4614465283).

32020020221 is an equidigital number, since it uses as much as digits as its factorization.

32020020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022091.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 32020020221 its reverse (12202002023), we get a palindrome (44222022244).

It can be divided in two parts, 3202002022 and 1, that added together give a palindrome (3202002023).

The spelling of 32020020221 in words is "thirty-two billion, twenty million, twenty thousand, two hundred twenty-one".