32220144232 has 8 divisors (see below), whose sum is σ = 60412770450. Its totient is φ = 16110072112.

The previous prime is 32220144211. The next prime is 32220144239. The reversal of 32220144232 is 23244102223.

It can be written as a sum of positive squares in only one way, i.e., 31267434276 + 952709956 = 176826^2 + 30866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 32220144197 and 32220144206.

It is not an unprimeable number, because it can be changed into a prime (32220144239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013759007 + ... + 2013759022.

Almost surely, 2^32220144232 is an apocalyptic number.

It is an amenable number.

32220144232 is a deficient number, since it is larger than the sum of its proper divisors (28192626218).

32220144232 is a wasteful number, since it uses less digits than its factorization.

32220144232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027518035 (or 4027518031 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 32220144232 its reverse (23244102223), we get a palindrome (55464246455).

The spelling of 32220144232 in words is "thirty-two billion, two hundred twenty million, one hundred forty-four thousand, two hundred thirty-two".