32220221232 has 160 divisors (see below), whose sum is σ = 87770382336. Its totient is φ = 10165478400.

The previous prime is 32220221221. The next prime is 32220221233. The reversal of 32220221232 is 23212202223.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 32220221199 and 32220221208.

It is not an unprimeable number, because it can be changed into a prime (32220221233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76532382 + ... + 76532802.

Almost surely, 2^32220221232 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 32220221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43885191168).

32220221232 is an abundant number, since it is smaller than the sum of its proper divisors (55550161104).

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

32220221232 is a wasteful number, since it uses less digits than its factorization.

32220221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 32220221232 its reverse (23212202223), we get a palindrome (55432423455).

The spelling of 32220221232 in words is "thirty-two billion, two hundred twenty million, two hundred twenty-one thousand, two hundred thirty-two".