11112111211012 has 48 divisors (see below), whose sum is σ = 23469896604672. Its totient is φ = 4500392545440.

The previous prime is 11112111211009. The next prime is 11112111211051. The reversal of 11112111211012 is 21011211121111.

It is a super-3 number, since 3×11112111211012³ (a number of 40 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 103891314 + ... + 103998217.

It is an arithmetic number, because the mean of its divisors is an integer number (488956179264).

Almost surely, 2^{11112111211012} is an apocalyptic number.

It is an amenable number.

11112111211012 is an abundant number, since it is smaller than the sum of its proper divisors (12357785393660).

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

11112111211012 is a wasteful number, since it uses less digits than its factorization.

11112111211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207889648 (or 207889646 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11112111211012 its reverse (21011211121111), we get a palindrome (32123322332123).

The spelling of 11112111211012 in words is "eleven trillion, one hundred twelve billion, one hundred eleven million, two hundred eleven thousand, twelve".