12012101012101 has 4 divisors (see below), whose sum is σ = 12063655093932. Its totient is φ = 11960546930272.

The previous prime is 12012101012081. The next prime is 12012101012137. The reversal of 12012101012101 is 10121010121021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7199825196001 + 4812275816100 = 2683249^2 + 2193690^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012101012101 - 2²³ = 12012092623493 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 (12012101012161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25777040566 + ... + 25777041031.

It is an arithmetic number, because the mean of its divisors is an integer number (3015913773483).

Almost surely, 2^{12012101012101} is an apocalyptic number.

It is an amenable number.

12012101012101 is a deficient number, since it is larger than the sum of its proper divisors (51554081831).

12012101012101 is an equidigital number, since it uses as much as digits as its factorization.

12012101012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51554081830.

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

Adding to 12012101012101 its reverse (10121010121021), we get a palindrome (22133111133122).

It can be divided in two parts, 1 and 2012101012101, that added together give a palindrome (2012101012102).

The spelling of 12012101012101 in words is "twelve trillion, twelve billion, one hundred one million, twelve thousand, one hundred one".