32221213332 has 384 divisors, whose sum is σ = 99449634816. Its totient is φ = 7879680000.

The previous prime is 32221213303. The next prime is 32221213351. The reversal of 32221213332 is 23331212223.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 168697357 + ... + 168697547.

It is an arithmetic number, because the mean of its divisors is an integer number (258983424).

Almost surely, 2^32221213332 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 32221213332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49724817408).

32221213332 is an abundant number, since it is smaller than the sum of its proper divisors (67228421484).

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

32221213332 is a wasteful number, since it uses less digits than its factorization.

32221213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 389 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 32221213332 its reverse (23331212223), we get a palindrome (55552425555).

The spelling of 32221213332 in words is "thirty-two billion, two hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-two".