11112011021121 has 8 divisors (see below), whose sum is σ = 15037149242784. Its totient is φ = 7297440073440.

The previous prime is 11112011021117. The next prime is 11112011021143. The reversal of 11112011021121 is 12112011021111.

11112011021121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11112011021121 - 2² = 11112011021117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11112011021121.

It is not an unprimeable number, because it can be changed into a prime (11112011021921) 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, 27641818260 + ... + 27641818661.

It is an arithmetic number, because the mean of its divisors is an integer number (1879643655348).

Almost surely, 2^{11112011021121} is an apocalyptic number.

It is an amenable number.

11112011021121 is a deficient number, since it is larger than the sum of its proper divisors (3925138221663).

11112011021121 is an equidigital number, since it uses as much as digits as its factorization.

11112011021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55283636991.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11112011021121 its reverse (12112011021111), we get a palindrome (23224022042232).

The spelling of 11112011021121 in words is "eleven trillion, one hundred twelve billion, eleven million, twenty-one thousand, one hundred twenty-one".