3220221330 has 48 divisors (see below), whose sum is σ = 8490515904. Its totient is φ = 846629280.

The previous prime is 3220221313. The next prime is 3220221331. The reversal of 3220221330 is 331220223.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (3220221331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245584 + ... + 258363.

It is an arithmetic number, because the mean of its divisors is an integer number (176885748).

Almost surely, 2^3220221330 is an apocalyptic number.

3220221330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3220221330 is an abundant number, since it is smaller than the sum of its proper divisors (5270294574).

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

3220221330 is a wasteful number, since it uses less digits than its factorization.

3220221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504031 (or 504028 counting only the distinct ones).

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

The square root of 3220221330 is about 56746.9940173046. The cubic root of 3220221330 is about 1476.7100847762.

Adding to 3220221330 its reverse (331220223), we get a palindrome (3551441553).

The spelling of 3220221330 in words is "three billion, two hundred twenty million, two hundred twenty-one thousand, three hundred thirty".