11200202221121 has 4 divisors (see below), whose sum is σ = 11200468788672. Its totient is φ = 11199935653572.

The previous prime is 11200202221111. The next prime is 11200202221127. The reversal of 11200202221121 is 12112220200211.

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.

It is a cyclic number.

It is not a de Polignac number, because 11200202221121 - 2¹⁸ = 11200201958977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11200202221121.

It is not an unprimeable number, because it can be changed into a prime (11200202221127) 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, 133220741 + ... + 133304786.

It is an arithmetic number, because the mean of its divisors is an integer number (2800117197168).

Almost surely, 2^{11200202221121} is an apocalyptic number.

It is an amenable number.

11200202221121 is a deficient number, since it is larger than the sum of its proper divisors (266567551).

11200202221121 is an equidigital number, since it uses as much as digits as its factorization.

11200202221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266567550.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11200202221121 its reverse (12112220200211), we get a palindrome (23312422421332).

The spelling of 11200202221121 in words is "eleven trillion, two hundred billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-one".