32221203112 has 128 divisors (see below), whose sum is σ = 71220441600. Its totient is φ = 13383180288.

The previous prime is 32221203103. The next prime is 32221203151. The reversal of 32221203112 is 21130212223.

It is a self number, because there is not a number n which added to its sum of digits gives 32221203112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74413648 + ... + 74414080.

It is an arithmetic number, because the mean of its divisors is an integer number (556409700).

Almost surely, 2^32221203112 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 32221203112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35610220800).

32221203112 is an abundant number, since it is smaller than the sum of its proper divisors (38999238488).

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

32221203112 is a wasteful number, since it uses less digits than its factorization.

32221203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 32221203112 its reverse (21130212223), we get a palindrome (53351415335).

The spelling of 32221203112 in words is "thirty-two billion, two hundred twenty-one million, two hundred three thousand, one hundred twelve".