100330221 has 4 divisors (see below), whose sum is σ = 133773632. Its totient is φ = 66886812.

The previous prime is 100330211. The next prime is 100330259. The reversal of 100330221 is 122033001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 100330221 - 2⁵ = 100330189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100330197 and 100330206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100330201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16721701 + ... + 16721706.

It is an arithmetic number, because the mean of its divisors is an integer number (33443408).

Almost surely, 2^100330221 is an apocalyptic number.

It is an amenable number.

100330221 is a deficient number, since it is larger than the sum of its proper divisors (33443411).

100330221 is an equidigital number, since it uses as much as digits as its factorization.

100330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33443410.

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

The square root of 100330221 is about 10016.4974417208. The cubic root of 100330221 is about 464.6692387081.

Adding to 100330221 its reverse (122033001), we get a palindrome (222363222).

The spelling of 100330221 in words is "one hundred million, three hundred thirty thousand, two hundred twenty-one".