32221220000 has 120 divisors (see below), whose sum is σ = 80389042272. Its totient is φ = 12706400000.

The previous prime is 32221219993. The next prime is 32221220023. The reversal of 32221220000 is 2212223.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1408655 + ... + 1431345.

Almost surely, 2^32221220000 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 32221220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40194521136).

32221220000 is an abundant number, since it is smaller than the sum of its proper divisors (48167822272).

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

32221220000 is an equidigital number, since it uses as much as digits as its factorization.

32221220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22792 (or 22769 counting only the distinct ones).

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

Adding to 32221220000 its reverse (2212223), we get a palindrome (32223432223).

The spelling of 32221220000 in words is "thirty-two billion, two hundred twenty-one million, two hundred twenty thousand".