12102111011112 has 64 divisors (see below), whose sum is σ = 30296466244800. Its totient is φ = 4028546695680.

The previous prime is 12102111011093. The next prime is 12102111011197. The reversal of 12102111011112 is 21111011120121.

It is a super-2 number, since 2×12102111011112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102111011091 and 12102111011100.

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, 138651388 + ... + 138738644.

It is an arithmetic number, because the mean of its divisors is an integer number (473382285075).

Almost surely, 2^{12102111011112} is an apocalyptic number.

12102111011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102111011112 is an abundant number, since it is smaller than the sum of its proper divisors (18194355233688).

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

12102111011112 is a wasteful number, since it uses less digits than its factorization.

12102111011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95066 (or 95062 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12102111011112 its reverse (21111011120121), we get a palindrome (33213122131233).

The spelling of 12102111011112 in words is "twelve trillion, one hundred two billion, one hundred eleven million, eleven thousand, one hundred twelve".