11212002200021 has 12 divisors (see below), whose sum is σ = 13115396495520. Its totient is φ = 9556598835000.

The previous prime is 11212002200011. The next prime is 11212002200129. The reversal of 11212002200021 is 12000220021211.

It is not a de Polignac number, because 11212002200021 - 2¹⁰ = 11212002198997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212002199969 and 11212002200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212002200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639143105 + ... + 639160646.

It is an arithmetic number, because the mean of its divisors is an integer number (1092949707960).

Almost surely, 2^{11212002200021} is an apocalyptic number.

It is an amenable number.

11212002200021 is a deficient number, since it is larger than the sum of its proper divisors (1903394295499).

11212002200021 is a wasteful number, since it uses less digits than its factorization.

11212002200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278303944 (or 1278303937 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11212002200021 its reverse (12000220021211), we get a palindrome (23212222221232).

The spelling of 11212002200021 in words is "eleven trillion, two hundred twelve billion, two million, two hundred thousand, twenty-one".