12012112100101 has 4 divisors (see below), whose sum is σ = 12022808550112. Its totient is φ = 12001415650092.

The previous prime is 12012112100081. The next prime is 12012112100159. The reversal of 12012112100101 is 10100121121021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12012112100101 - 2⁷ = 12012112099973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012112100501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348223321 + ... + 5348225566.

It is an arithmetic number, because the mean of its divisors is an integer number (3005702137528).

Almost surely, 2^{12012112100101} is an apocalyptic number.

It is an amenable number.

12012112100101 is a deficient number, since it is larger than the sum of its proper divisors (10696450011).

12012112100101 is a wasteful number, since it uses less digits than its factorization.

12012112100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10696450010.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12012112100101 its reverse (10100121121021), we get a palindrome (22112233221122).

The spelling of 12012112100101 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred thousand, one hundred one".