11111001211112 has 64 divisors (see below), whose sum is σ = 24132885336000. Its totient is φ = 4739749309440.

The previous prime is 11111001211097. The next prime is 11111001211153. The reversal of 11111001211112 is 21111210011111.

11111001211112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10118498 + ... + 11162705.

It is an arithmetic number, because the mean of its divisors is an integer number (377076333375).

Almost surely, 2^{11111001211112} is an apocalyptic number.

It is an amenable number.

11111001211112 is an abundant number, since it is smaller than the sum of its proper divisors (13021884124888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111001211112 is a wasteful number, since it uses less digits than its factorization.

11111001211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281586 (or 21281582 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11111001211112 its reverse (21111210011111), we get a palindrome (32222211222223).

The spelling of 11111001211112 in words is "eleven trillion, one hundred eleven billion, one million, two hundred eleven thousand, one hundred twelve".