12101122012 has 48 divisors (see below), whose sum is σ = 24483363520. Its totient is φ = 5126188032.

The previous prime is 12101122003. The next prime is 12101122039. The reversal of 12101122012 is 21022110121.

It is a junction number, because it is equal to n+sod(n) for n = 12101121983 and 12101122001.

It is a congruent number.

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, 1316938 + ... + 1326094.

Almost surely, 2^12101122012 is an apocalyptic number.

It is an amenable number.

12101122012 is an abundant number, since it is smaller than the sum of its proper divisors (12382241508).

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

12101122012 is a wasteful number, since it uses less digits than its factorization.

12101122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9710 (or 9708 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12101122012 its reverse (21022110121), we get a palindrome (33123232133).

The spelling of 12101122012 in words is "twelve billion, one hundred one million, one hundred twenty-two thousand, twelve".