11210120221121 has 4 divisors (see below), whose sum is σ = 11210135446272. Its totient is φ = 11210104995972.

The previous prime is 11210120221093. The next prime is 11210120221169. The reversal of 11210120221121 is 12112202101211.

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 11210120221121 - 2²⁶ = 11210053112257 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 11210120221121.

It is not an unprimeable number, because it can be changed into a prime (11210120220121) 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, 6448841 + ... + 8000486.

It is an arithmetic number, because the mean of its divisors is an integer number (2802533861568).

Almost surely, 2^{11210120221121} is an apocalyptic number.

It is an amenable number.

11210120221121 is a deficient number, since it is larger than the sum of its proper divisors (15225151).

11210120221121 is an equidigital number, since it uses as much as digits as its factorization.

11210120221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225150.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11210120221121 its reverse (12112202101211), we get a palindrome (23322322322332).

The spelling of 11210120221121 in words is "eleven trillion, two hundred ten billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twenty-one".