3323021220 has 96 divisors (see below), whose sum is σ = 10384214400. Its totient is φ = 882202752.

The previous prime is 3323021183. The next prime is 3323021227. The reversal of 3323021220 is 221203233.

It is a happy number.

3323021220 is a `hidden beast` number, since 332 + 302 + 12 + 20 = 666.

It is a super-2 number, since 2×3323021220² = 22084940057140576800, which 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 = 3323021193 and 3323021202.

It is not an unprimeable number, because it can be changed into a prime (3323021227) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 109026 + ... + 136134.

It is an arithmetic number, because the mean of its divisors is an integer number (108168900).

Almost surely, 2^3323021220 is an apocalyptic number.

3323021220 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 3323021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5192107200).

3323021220 is an abundant number, since it is smaller than the sum of its proper divisors (7061193180).

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

3323021220 is a wasteful number, since it uses less digits than its factorization.

3323021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27354 (or 27346 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3323021220 is about 57645.6522211346. The cubic root of 3323021220 is about 1492.2595658248.

Adding to 3323021220 its reverse (221203233), we get a palindrome (3544224453).

The spelling of 3323021220 in words is "three billion, three hundred twenty-three million, twenty-one thousand, two hundred twenty".