3221321020020 has 288 divisors, whose sum is σ = 10343435182080. Its totient is φ = 809241788160.

The previous prime is 3221321019979. The next prime is 3221321020069. The reversal of 3221321020020 is 200201231223.

3221321020020 is a `hidden beast` number, since 322 + 1 + 321 + 0 + 2 + 0 + 0 + 20 = 666.

It is a super-2 number, since 2×3221321020020² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3221321019975 and 3221321020002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 893073057 + ... + 893076663.

Almost surely, 2^{3221321020020} is an apocalyptic number.

3221321020020 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 3221321020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171717591040).

3221321020020 is an abundant number, since it is smaller than the sum of its proper divisors (7122114162060).

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

3221321020020 is a wasteful number, since it uses less digits than its factorization.

3221321020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 3221321020020 its reverse (200201231223), we get a palindrome (3421522251243).

The spelling of 3221321020020 in words is "three trillion, two hundred twenty-one billion, three hundred twenty-one million, twenty thousand, twenty".