11101121012 has 12 divisors (see below), whose sum is σ = 19465132260. Its totient is φ = 5539654656.

The previous prime is 11101120997. The next prime is 11101121029. The reversal of 11101121012 is 21012110111.

It can be written as a sum of positive squares in 2 ways, for example, as 8472097936 + 2629023076 = 92044^2 + 51274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11101120984 and 11101121002.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2724173 + ... + 2728244.

It is an arithmetic number, because the mean of its divisors is an integer number (1622094355).

Almost surely, 2^11101121012 is an apocalyptic number.

It is an amenable number.

11101121012 is a deficient number, since it is larger than the sum of its proper divisors (8364011248).

11101121012 is a wasteful number, since it uses less digits than its factorization.

11101121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452930 (or 5452928 counting only the distinct ones).

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

Adding to 11101121012 its reverse (21012110111), we get a palindrome (32113231123).

The spelling of 11101121012 in words is "eleven billion, one hundred one million, one hundred twenty-one thousand, twelve".