11101120121 has 8 divisors (see below), whose sum is σ = 13662917184. Its totient is φ = 8783303760.

The previous prime is 11101120111. The next prime is 11101120171. The reversal of 11101120121 is 12102110111.

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

It is not a de Polignac number, because 11101120121 - 2¹⁰ = 11101119097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11101120111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60995075 + ... + 60995256.

It is an arithmetic number, because the mean of its divisors is an integer number (1707864648).

Almost surely, 2^11101120121 is an apocalyptic number.

It is an amenable number.

11101120121 is a deficient number, since it is larger than the sum of its proper divisors (2561797063).

11101120121 is a wasteful number, since it uses less digits than its factorization.

11101120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121990351.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11101120121 its reverse (12102110111), we get a palindrome (23203230232).

The spelling of 11101120121 in words is "eleven billion, one hundred one million, one hundred twenty thousand, one hundred twenty-one".