3221200100 has 18 divisors (see below), whose sum is σ = 6990004434. Its totient is φ = 1288480000.

The previous prime is 3221200063. The next prime is 3221200109. The reversal of 3221200100 is 10021223.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 123832384 + 3097367716 = 11128^2 + 55654^2 .

It is a super-2 number, since 2×3221200100² = 20752260168480020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3221200109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16105901 + ... + 16106100.

Almost surely, 2^3221200100 is an apocalyptic number.

It is an amenable number.

3221200100 is an abundant number, since it is smaller than the sum of its proper divisors (3768804334).

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

3221200100 is a wasteful number, since it uses less digits than its factorization.

3221200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32212015 (or 32212008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3221200100 is about 56755.6173431318. The cubic root of 3221200100 is about 1476.8596824766.

Adding to 3221200100 its reverse (10021223), we get a palindrome (3231221323).

The spelling of 3221200100 in words is "three billion, two hundred twenty-one million, two hundred thousand, one hundred".