3221030100 has 144 divisors (see below), whose sum is σ = 9945682880. Its totient is φ = 802483200.

The previous prime is 3221030093. The next prime is 3221030117. The reversal of 3221030100 is 10301223.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 412230 + ... + 419970.

Almost surely, 2^3221030100 is an apocalyptic number.

3221030100 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 3221030100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4972841440).

3221030100 is an abundant number, since it is smaller than the sum of its proper divisors (6724652780).

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

3221030100 is a wasteful number, since it uses less digits than its factorization.

3221030100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850 (or 7843 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3221030100 is about 56754.1196742580. The cubic root of 3221030100 is about 1476.8337014183.

Adding to 3221030100 its reverse (10301223), we get a palindrome (3231331323).

The spelling of 3221030100 in words is "three billion, two hundred twenty-one million, thirty thousand, one hundred".