3221223300 has 108 divisors (see below), whose sum is σ = 10197000996. Its totient is φ = 850464000.

The previous prime is 3221223259. The next prime is 3221223389. The reversal of 3221223300 is 33221223.

It is a happy number.

3221223300 is a `hidden beast` number, since 322 + 12 + 2 + 330 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 463713156 + 2757510144 = 21534^2 + 52512^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 73182 + ... + 108618.

Almost surely, 2^3221223300 is an apocalyptic number.

3221223300 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 3221223300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5098500498).

3221223300 is an abundant number, since it is smaller than the sum of its proper divisors (6975777696).

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

3221223300 is a wasteful number, since it uses less digits than its factorization.

3221223300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35558 (or 35548 counting only the distinct ones).

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

The square root of 3221223300 is about 56755.8217278193. The cubic root of 3221223300 is about 1476.8632280561.

Adding to 3221223300 its reverse (33221223), we get a palindrome (3254444523).

The spelling of 3221223300 in words is "three billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred".