200100110021 has 4 divisors (see below), whose sum is σ = 228685840032. Its totient is φ = 171514380012.

The previous prime is 200100110011. The next prime is 200100110047. The reversal of 200100110021 is 120011001002.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120011001002 = 2 ⋅60005500501.

It is a cyclic number.

It is not a de Polignac number, because 200100110021 - 2¹⁸ = 200099847877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200100109990 and 200100110008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200100110011) 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, 14292864995 + ... + 14292865008.

It is an arithmetic number, because the mean of its divisors is an integer number (57171460008).

Almost surely, 2^200100110021 is an apocalyptic number.

It is an amenable number.

200100110021 is a deficient number, since it is larger than the sum of its proper divisors (28585730011).

200100110021 is an equidigital number, since it uses as much as digits as its factorization.

200100110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28585730010.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 200100110021 its reverse (120011001002), we get a palindrome (320111111023).

The spelling of 200100110021 in words is "two hundred billion, one hundred million, one hundred ten thousand, twenty-one".