100330021 has 8 divisors (see below), whose sum is σ = 111085344. Its totient is φ = 89847120.

The previous prime is 100330019. The next prime is 100330081. The reversal of 100330021 is 120033001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100330021 - 2¹ = 100330019 is a prime.

It is a super-2 number, since 2×100330021² = 20132226227720882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100330001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67330 + ... + 68803.

It is an arithmetic number, because the mean of its divisors is an integer number (13885668).

Almost surely, 2^100330021 is an apocalyptic number.

100330021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100330021 is a deficient number, since it is larger than the sum of its proper divisors (10755323).

100330021 is a wasteful number, since it uses less digits than its factorization.

100330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136211.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 100330021 is about 10016.4874581861. The cubic root of 100330021 is about 464.6689299480.

Adding to 100330021 its reverse (120033001), we get a palindrome (220363022).

The spelling of 100330021 in words is "one hundred million, three hundred thirty thousand, twenty-one".