12101212012112 has 40 divisors (see below), whose sum is σ = 23499486591360. Its totient is φ = 6036831440640.

The previous prime is 12101212012081. The next prime is 12101212012177. The reversal of 12101212012112 is 21121021210121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66351287 + ... + 66533417.

It is an arithmetic number, because the mean of its divisors is an integer number (587487164784).

Almost surely, 2^{12101212012112} is an apocalyptic number.

It is an amenable number.

12101212012112 is a deficient number, since it is larger than the sum of its proper divisors (11398274579248).

12101212012112 is a wasteful number, since it uses less digits than its factorization.

12101212012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191571 (or 191565 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12101212012112 its reverse (21121021210121), we get a palindrome (33222233222233).

The spelling of 12101212012112 in words is "twelve trillion, one hundred one billion, two hundred twelve million, twelve thousand, one hundred twelve".