3221403100 has 72 divisors (see below), whose sum is σ = 7439992560. Its totient is φ = 1206481920.

The previous prime is 3221403047. The next prime is 3221403109. The reversal of 3221403100 is 13041223.

It is a happy number.

It is a super-2 number, since 2×3221403100² = 20754875865379220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221403109) 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 23 ways as a sum of consecutive naturals, for example, 330091 + ... + 339709.

It is an arithmetic number, because the mean of its divisors is an integer number (103333230).

Almost surely, 2^3221403100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221403100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3719996280).

3221403100 is an abundant number, since it is smaller than the sum of its proper divisors (4218589460).

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

3221403100 is a wasteful number, since it uses less digits than its factorization.

3221403100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9847 (or 9840 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3221403100 is about 56757.4056841924. The cubic root of 3221403100 is about 1476.8907057194.

Adding to 3221403100 its reverse (13041223), we get a palindrome (3234444323).

The spelling of 3221403100 in words is "three billion, two hundred twenty-one million, four hundred three thousand, one hundred".