3221020200000 has 336 divisors, whose sum is σ = 10940143411008. Its totient is φ = 835718400000.

The previous prime is 3221020199981. The next prime is 3221020200071. The reversal of 3221020200000 is 20201223.

It is a super-2 number, since 2×3221020200000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22127455 + ... + 22272545.

It is an arithmetic number, because the mean of its divisors is an integer number (32559950628).

Almost surely, 2^{3221020200000} is an apocalyptic number.

3221020200000 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 3221020200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5470071705504).

3221020200000 is an abundant number, since it is smaller than the sum of its proper divisors (7719123211008).

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

3221020200000 is an equidigital number, since it uses as much as digits as its factorization.

3221020200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145168 (or 145138 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 3221020200000 its reverse (20201223), we get a palindrome (3221040401223).

The spelling of 3221020200000 in words is "three trillion, two hundred twenty-one billion, twenty million, two hundred thousand".