12121102012112 has 40 divisors (see below), whose sum is σ = 23712844780800. Its totient is φ = 6001699905792.

The previous prime is 12121102012027. The next prime is 12121102012157. The reversal of 12121102012112 is 21121020112121.

12121102012112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121102012112² (a number of 27 digits) contains 22 as substring.

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, 3352964 + ... + 5956892.

It is an arithmetic number, because the mean of its divisors is an integer number (592821119520).

Almost surely, 2^{12121102012112} is an apocalyptic number.

It is an amenable number.

12121102012112 is a deficient number, since it is larger than the sum of its proper divisors (11591742768688).

12121102012112 is a wasteful number, since it uses less digits than its factorization.

12121102012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606763 (or 2606757 counting only the distinct ones).

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

Adding to 12121102012112 its reverse (21121020112121), we get a palindrome (33242122124233).

The spelling of 12121102012112 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, twelve thousand, one hundred twelve".