32120322220 has 72 divisors (see below), whose sum is σ = 78872379264. Its totient is φ = 10955556864.

The previous prime is 32120322209. The next prime is 32120322281. The reversal of 32120322220 is 2222302123.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104229 + ... + 274051.

It is an arithmetic number, because the mean of its divisors is an integer number (1095449712).

Almost surely, 2^32120322220 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 32120322220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39436189632).

32120322220 is an abundant number, since it is smaller than the sum of its proper divisors (46752057044).

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

32120322220 is a wasteful number, since it uses less digits than its factorization.

32120322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170039 (or 170030 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 32120322220 its reverse (2222302123), we get a palindrome (34342624343).

The spelling of 32120322220 in words is "thirty-two billion, one hundred twenty million, three hundred twenty-two thousand, two hundred twenty".