12100200111 has 12 divisors (see below), whose sum is σ = 18237983088. Its totient is φ = 7716069504.

The previous prime is 12100200029. The next prime is 12100200193. The reversal of 12100200111 is 11100200121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12100200029) and next prime (12100200193).

It is a de Polignac number, because none of the positive numbers 2^k-12100200111 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 = 12100200093 and 12100200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100200311) 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 11 ways as a sum of consecutive naturals, for example, 29227330 + ... + 29227743.

It is an arithmetic number, because the mean of its divisors is an integer number (1519831924).

Almost surely, 2^12100200111 is an apocalyptic number.

12100200111 is a deficient number, since it is larger than the sum of its proper divisors (6137782977).

12100200111 is a wasteful number, since it uses less digits than its factorization.

12100200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58455102 (or 58455099 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12100200111 its reverse (11100200121), we get a palindrome (23200400232).

The spelling of 12100200111 in words is "twelve billion, one hundred million, two hundred thousand, one hundred eleven".