12102100210111 has 4 divisors (see below), whose sum is σ = 12102188090832. Its totient is φ = 12102012329392.

The previous prime is 12102100210073. The next prime is 12102100210133. The reversal of 12102100210111 is 11101200120121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12102100210111 - 2⁴¹ = 9903076954559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102100210091 and 12102100210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102100217111) 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, 43733470 + ... + 44009323.

It is an arithmetic number, because the mean of its divisors is an integer number (3025547022708).

Almost surely, 2^{12102100210111} is an apocalyptic number.

12102100210111 is a deficient number, since it is larger than the sum of its proper divisors (87880721).

12102100210111 is an equidigital number, since it uses as much as digits as its factorization.

12102100210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87880720.

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

Adding to 12102100210111 its reverse (11101200120121), we get a palindrome (23203300330232).

The spelling of 12102100210111 in words is "twelve trillion, one hundred two billion, one hundred million, two hundred ten thousand, one hundred eleven".