100033021 has 8 divisors (see below), whose sum is σ = 109823904. Its totient is φ = 90358320.

The previous prime is 100033013. The next prime is 100033027. The reversal of 100033021 is 120330001.

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

It is a cyclic number.

It is not a de Polignac number, because 100033021 - 2³ = 100033013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100032989 and 100033007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100033027) 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, 27235 + ... + 30688.

It is an arithmetic number, because the mean of its divisors is an integer number (13727988).

Almost surely, 2^100033021 is an apocalyptic number.

100033021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100033021 is a deficient number, since it is larger than the sum of its proper divisors (9790883).

100033021 is a wasteful number, since it uses less digits than its factorization.

100033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58091.

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

The square root of 100033021 is about 10001.6509137242. The cubic root of 100033021 is about 464.2099677071.

Adding to 100033021 its reverse (120330001), we get a palindrome (220363022).

The spelling of 100033021 in words is "one hundred million, thirty-three thousand, twenty-one".