3221211423320 has 128 divisors (see below), whose sum is σ = 7924428288000. Its totient is φ = 1168712724480.

The previous prime is 3221211423319. The next prime is 3221211423349. The reversal of 3221211423320 is 233241121223.

It is a self number, because there is not a number n which added to its sum of digits gives 3221211423320.

It is a congruent number.

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, 479414921 + ... + 479421639.

It is an arithmetic number, because the mean of its divisors is an integer number (61909596000).

Almost surely, 2^{3221211423320} 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 3221211423320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3962214144000).

3221211423320 is an abundant number, since it is smaller than the sum of its proper divisors (4703216864680).

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

3221211423320 is a wasteful number, since it uses less digits than its factorization.

3221211423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9033 (or 9029 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 3221211423320 its reverse (233241121223), we get a palindrome (3454452544543).

The spelling of 3221211423320 in words is "three trillion, two hundred twenty-one billion, two hundred eleven million, four hundred twenty-three thousand, three hundred twenty".