3221231210220 has 192 divisors, whose sum is σ = 9403714123776. Its totient is φ = 823283358720.

The previous prime is 3221231210101. The next prime is 3221231210221. The reversal of 3221231210220 is 220121321223.

3221231210220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3221231210221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39007294 + ... + 39089786.

It is an arithmetic number, because the mean of its divisors is an integer number (48977677728).

Almost surely, 2^{3221231210220} is an apocalyptic number.

3221231210220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221231210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4701857061888).

3221231210220 is an abundant number, since it is smaller than the sum of its proper divisors (6182482913556).

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

3221231210220 is a wasteful number, since it uses less digits than its factorization.

3221231210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82840 (or 82838 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 3221231210220 its reverse (220121321223), we get a palindrome (3441352531443).

The spelling of 3221231210220 in words is "three trillion, two hundred twenty-one billion, two hundred thirty-one million, two hundred ten thousand, two hundred twenty".