12100100001111 has 80 divisors (see below), whose sum is σ = 18676628330976. Its totient is φ = 7801971840000.

The previous prime is 12100100001107. The next prime is 12100100001113. The reversal of 12100100001111 is 11110000100121.

It is not a de Polignac number, because 12100100001111 - 2² = 12100100001107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12100100001093 and 12100100001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100100001113) 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 79 ways as a sum of consecutive naturals, for example, 444173451 + ... + 444200691.

Almost surely, 2^{12100100001111} is an apocalyptic number.

12100100001111 is a deficient number, since it is larger than the sum of its proper divisors (6576528329865).

12100100001111 is a wasteful number, since it uses less digits than its factorization.

12100100001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28446 (or 28437 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 12100100001111 its reverse (11110000100121), we get a palindrome (23210100101232).

The spelling of 12100100001111 in words is "twelve trillion, one hundred billion, one hundred million, one thousand, one hundred eleven".