12100012100111 has 32 divisors (see below), whose sum is σ = 13161393907200. Its totient is φ = 11057718672000.

The previous prime is 12100012100107. The next prime is 12100012100171. The reversal of 12100012100111 is 11100121000121.

It is not a de Polignac number, because 12100012100111 - 2² = 12100012100107 is a prime.

It is a super-2 number, since 2×12100012100111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100012100092 and 12100012100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100012100171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2443950686 + ... + 2443955636.

It is an arithmetic number, because the mean of its divisors is an integer number (411293559600).

Almost surely, 2^{12100012100111} is an apocalyptic number.

12100012100111 is a deficient number, since it is larger than the sum of its proper divisors (1061381807089).

12100012100111 is a wasteful number, since it uses less digits than its factorization.

12100012100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8207.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12100012100111 its reverse (11100121000121), we get a palindrome (23200133100232).

The spelling of 12100012100111 in words is "twelve trillion, one hundred billion, twelve million, one hundred thousand, one hundred eleven".