32021530220 has 48 divisors (see below), whose sum is σ = 67675408416. Its totient is φ = 12726912000.

The previous prime is 32021530199. The next prime is 32021530273. The reversal of 32021530220 is 2203512023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 32021530192 and 32021530201.

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, 2214815 + ... + 2229225.

It is an arithmetic number, because the mean of its divisors is an integer number (1409904342).

Almost surely, 2^32021530220 is an apocalyptic number.

It is an amenable number.

32021530220 is an abundant number, since it is smaller than the sum of its proper divisors (35653878196).

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

32021530220 is a wasteful number, since it uses less digits than its factorization.

32021530220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15122 (or 15120 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The spelling of 32021530220 in words is "thirty-two billion, twenty-one million, five hundred thirty thousand, two hundred twenty".