32020021220 has 48 divisors (see below), whose sum is σ = 77669964288. Its totient is φ = 10958722560.

The previous prime is 32020021211. The next prime is 32020021249. The reversal of 32020021220 is 2212002023.

It is a junction number, because it is equal to n+sod(n) for n = 32020021195 and 32020021204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4277012 + ... + 4284491.

It is an arithmetic number, because the mean of its divisors is an integer number (1618124256).

Almost surely, 2^32020021220 is an apocalyptic number.

It is an amenable number.

32020021220 is an abundant number, since it is smaller than the sum of its proper divisors (45649943068).

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

32020021220 is a wasteful number, since it uses less digits than its factorization.

32020021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8561540 (or 8561538 counting only the distinct ones).

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

Adding to 32020021220 its reverse (2212002023), we get a palindrome (34232023243).

The spelling of 32020021220 in words is "thirty-two billion, twenty million, twenty-one thousand, two hundred twenty".