32021030220 has 48 divisors (see below), whose sum is σ = 94377776640. Its totient is φ = 8089523136.

The previous prime is 32021030219. The next prime is 32021030227. The reversal of 32021030220 is 2203012023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 32021030220.

It is not an unprimeable number, because it can be changed into a prime (32021030227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14043172 + ... + 14045451.

It is an arithmetic number, because the mean of its divisors is an integer number (1966203680).

Almost surely, 2^32021030220 is an apocalyptic number.

32021030220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32021030220 is an abundant number, since it is smaller than the sum of its proper divisors (62356746420).

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

32021030220 is a wasteful number, since it uses less digits than its factorization.

32021030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28088654 (or 28088652 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 32021030220 its reverse (2203012023), we get a palindrome (34224042243).

The spelling of 32021030220 in words is "thirty-two billion, twenty-one million, thirty thousand, two hundred twenty".