12101200111 has 64 divisors (see below), whose sum is σ = 17172126720. Its totient is φ = 8212700160.

The previous prime is 12101200093. The next prime is 12101200123. The reversal of 12101200111 is 11100210121.

It is not a de Polignac number, because 12101200111 - 2¹⁷ = 12101069039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101209111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5267115 + ... + 5269411.

It is an arithmetic number, because the mean of its divisors is an integer number (268314480).

Almost surely, 2^12101200111 is an apocalyptic number.

12101200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12101200111 is a deficient number, since it is larger than the sum of its proper divisors (5070926609).

12101200111 is a wasteful number, since it uses less digits than its factorization.

12101200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12101200111 its reverse (11100210121), we get a palindrome (23201410232).

It can be divided in two parts, 12101 and 200111, that added together give a palindrome (212212).

The spelling of 12101200111 in words is "twelve billion, one hundred one million, two hundred thousand, one hundred eleven".