12000111102 has 24 divisors (see below), whose sum is σ = 29714561136. Its totient is φ = 3428603136.

The previous prime is 12000111091. The next prime is 12000111119. The reversal of 12000111102 is 20111100021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 11 ways as a sum of consecutive naturals, for example, 47619363 + ... + 47619614.

It is an arithmetic number, because the mean of its divisors is an integer number (1238106714).

Almost surely, 2^12000111102 is an apocalyptic number.

12000111102 is an abundant number, since it is smaller than the sum of its proper divisors (17714450034).

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

12000111102 is a wasteful number, since it uses less digits than its factorization.

12000111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95238992 (or 95238989 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12000111102 its reverse (20111100021), we get a palindrome (32111211123).

The spelling of 12000111102 in words is "twelve billion, one hundred eleven thousand, one hundred two".