100332021 has 16 divisors (see below), whose sum is σ = 136805760. Its totient is φ = 65382720.

The previous prime is 100331971. The next prime is 100332041. The reversal of 100332021 is 120233001.

It is a happy number.

It is not a de Polignac number, because 100332021 - 2¹⁸ = 100069877 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100331988 and 100332006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100332041) 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 15 ways as a sum of consecutive naturals, for example, 48435 + ... + 50463.

It is an arithmetic number, because the mean of its divisors is an integer number (8550360).

Almost surely, 2^100332021 is an apocalyptic number.

It is an amenable number.

100332021 is a deficient number, since it is larger than the sum of its proper divisors (36473739).

100332021 is a wasteful number, since it uses less digits than its factorization.

100332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

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

The square root of 100332021 is about 10016.5872930854. The cubic root of 100332021 is about 464.6720175306.

Adding to 100332021 its reverse (120233001), we get a palindrome (220565022).

The spelling of 100332021 in words is "one hundred million, three hundred thirty-two thousand, twenty-one".