11010200021 has 4 divisors (see below), whose sum is σ = 11020558752. Its totient is φ = 10999841292.

The previous prime is 11010200017. The next prime is 11010200023. The reversal of 11010200021 is 12000201011.

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: 12000201011 = 53 ⋅226418887.

It is a cyclic number.

It is not a de Polignac number, because 11010200021 - 2² = 11010200017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010199981 and 11010200008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010200023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5177771 + ... + 5179896.

It is an arithmetic number, because the mean of its divisors is an integer number (2755139688).

Almost surely, 2^11010200021 is an apocalyptic number.

It is an amenable number.

11010200021 is a deficient number, since it is larger than the sum of its proper divisors (10358731).

11010200021 is a wasteful number, since it uses less digits than its factorization.

11010200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358730.

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

Adding to 11010200021 its reverse (12000201011), we get a palindrome (23010401032).

The spelling of 11010200021 in words is "eleven billion, ten million, two hundred thousand, twenty-one".