12111203120101 has 4 divisors (see below), whose sum is σ = 12339716386572. Its totient is φ = 11882689853632.

The previous prime is 12111203120083. The next prime is 12111203120117. The reversal of 12111203120101 is 10102130211121.

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 4272183089476 + 7839020030625 = 2066926^2 + 2799825^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111203120101 - 2⁵ = 12111203120069 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 (12111203120131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114256633156 + ... + 114256633261.

It is an arithmetic number, because the mean of its divisors is an integer number (3084929096643).

Almost surely, 2^{12111203120101} is an apocalyptic number.

It is an amenable number.

12111203120101 is a deficient number, since it is larger than the sum of its proper divisors (228513266471).

12111203120101 is an equidigital number, since it uses as much as digits as its factorization.

12111203120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228513266470.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12111203120101 its reverse (10102130211121), we get a palindrome (22213333331222).

The spelling of 12111203120101 in words is "twelve trillion, one hundred eleven billion, two hundred three million, one hundred twenty thousand, one hundred one".