100221332 has 24 divisors (see below), whose sum is σ = 181884360. Its totient is φ = 48263040.

The previous prime is 100221323. The next prime is 100221367. The reversal of 100221332 is 233122001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3671056 + 96550276 = 1916^2 + 9826^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61958 + ... + 63554.

It is an arithmetic number, because the mean of its divisors is an integer number (7578515).

Almost surely, 2^100221332 is an apocalyptic number.

It is an amenable number.

100221332 is a deficient number, since it is larger than the sum of its proper divisors (81663028).

100221332 is a wasteful number, since it uses less digits than its factorization.

100221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 100221332 is about 10011.0604832855. The cubic root of 100221332 is about 464.5010750720.

Adding to 100221332 its reverse (233122001), we get a palindrome (333343333).

The spelling of 100221332 in words is "one hundred million, two hundred twenty-one thousand, three hundred thirty-two".