11110221121121 has 8 divisors (see below), whose sum is σ = 11696661964800. Its totient is φ = 10523949513840.

The previous prime is 11110221121063. The next prime is 11110221121123. The reversal of 11110221121121 is 12112112201111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11110221121121 - 2³⁴ = 11093041251937 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 11110221121121.

It is not an unprimeable number, because it can be changed into a prime (11110221121123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42174326 + ... + 42436943.

It is an arithmetic number, because the mean of its divisors is an integer number (1462082745600).

Almost surely, 2^{11110221121121} is an apocalyptic number.

It is an amenable number.

11110221121121 is a deficient number, since it is larger than the sum of its proper divisors (586440843679).

11110221121121 is an equidigital number, since it uses as much as digits as its factorization.

11110221121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84618199.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11110221121121 its reverse (12112112201111), we get a palindrome (23222333322232).

The spelling of 11110221121121 in words is "eleven trillion, one hundred ten billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-one".