11200010021 has 4 divisors (see below), whose sum is σ = 11205348000. Its totient is φ = 11194672044.

The previous prime is 11200009999. The next prime is 11200010027. The reversal of 11200010021 is 12001000211.

11200010021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 12001000211 = 89 ⋅134842699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11200010021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11200009990 and 11200010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200010027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665841 + ... + 2670038.

It is an arithmetic number, because the mean of its divisors is an integer number (2801337000).

Almost surely, 2^11200010021 is an apocalyptic number.

It is an amenable number.

11200010021 is a deficient number, since it is larger than the sum of its proper divisors (5337979).

11200010021 is an equidigital number, since it uses as much as digits as its factorization.

11200010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337978.

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

Adding to 11200010021 its reverse (12001000211), we get a palindrome (23201010232).

The spelling of 11200010021 in words is "eleven billion, two hundred million, ten thousand, twenty-one".