12012111102 has 16 divisors (see below), whose sum is σ = 24039417600. Its totient is φ = 4001504472.

The previous prime is 12012111101. The next prime is 12012111119. The reversal of 12012111102 is 20111121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012111101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622852 + ... + 641847.

It is an arithmetic number, because the mean of its divisors is an integer number (1502463600).

Almost surely, 2^12012111102 is an apocalyptic number.

12012111102 is an abundant number, since it is smaller than the sum of its proper divisors (12027306498).

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

12012111102 is a wasteful number, since it uses less digits than its factorization.

12012111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266287.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12012111102 its reverse (20111121021), we get a palindrome (32123232123).

The spelling of 12012111102 in words is "twelve billion, twelve million, one hundred eleven thousand, one hundred two".