11121213112 has 16 divisors (see below), whose sum is σ = 20853423360. Its totient is φ = 5560300224.

The previous prime is 11121213049. The next prime is 11121213127. The reversal of 11121213112 is 21131212111.

It is a happy number.

11121213112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213028 + ... + 260044.

It is an arithmetic number, because the mean of its divisors is an integer number (1303338960).

Almost surely, 2^11121213112 is an apocalyptic number.

It is an amenable number.

11121213112 is a deficient number, since it is larger than the sum of its proper divisors (9732210248).

11121213112 is a wasteful number, since it uses less digits than its factorization.

11121213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76590 (or 76586 counting only the distinct ones).

The product of its digits is 24, while the sum is 16.

Adding to 11121213112 its reverse (21131212111), we get a palindrome (32252425223).

The spelling of 11121213112 in words is "eleven billion, one hundred twenty-one million, two hundred thirteen thousand, one hundred twelve".