100033213021 has 4 divisors (see below), whose sum is σ = 114323672032. Its totient is φ = 85742754012.

The previous prime is 100033213001. The next prime is 100033213057. The reversal of 100033213021 is 120312330001.

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 a cyclic number.

It is not a de Polignac number, because 100033213021 - 2⁷ = 100033212893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100033212986 and 100033213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100033213001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7145229495 + ... + 7145229508.

It is an arithmetic number, because the mean of its divisors is an integer number (28580918008).

Almost surely, 2^100033213021 is an apocalyptic number.

It is an amenable number.

100033213021 is a deficient number, since it is larger than the sum of its proper divisors (14290459011).

100033213021 is an equidigital number, since it uses as much as digits as its factorization.

100033213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14290459010.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100033213021 its reverse (120312330001), we get a palindrome (220345543022).

The spelling of 100033213021 in words is "one hundred billion, thirty-three million, two hundred thirteen thousand, twenty-one".