11202200021 has 4 divisors (see below), whose sum is σ = 11563561344. Its totient is φ = 10840838700.

The previous prime is 11202199999. The next prime is 11202200027. The reversal of 11202200021 is 12000220211.

It is a happy number.

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: 12000220211 = 7 ⋅1714317173.

It is a cyclic number.

It is not a de Polignac number, because 11202200021 - 2²² = 11198005717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202199975 and 11202200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202200027) 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, 180680615 + ... + 180680676.

It is an arithmetic number, because the mean of its divisors is an integer number (2890890336).

Almost surely, 2^11202200021 is an apocalyptic number.

It is an amenable number.

11202200021 is a deficient number, since it is larger than the sum of its proper divisors (361361323).

11202200021 is an equidigital number, since it uses as much as digits as its factorization.

11202200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361361322.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11202200021 its reverse (12000220211), we get a palindrome (23202420232).

The spelling of 11202200021 in words is "eleven billion, two hundred two million, two hundred thousand, twenty-one".