12110012111 has 4 divisors (see below), whose sum is σ = 12137598000. Its totient is φ = 12082426224.

The previous prime is 12110012107. The next prime is 12110012119. The reversal of 12110012111 is 11121001121.

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 12110012111 - 2² = 12110012107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110012092 and 12110012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110012119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13792286 + ... + 13793163.

It is an arithmetic number, because the mean of its divisors is an integer number (3034399500).

Almost surely, 2^12110012111 is an apocalyptic number.

12110012111 is a deficient number, since it is larger than the sum of its proper divisors (27585889).

12110012111 is an equidigital number, since it uses as much as digits as its factorization.

12110012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27585888.

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

Adding to 12110012111 its reverse (11121001121), we get a palindrome (23231013232).

The spelling of 12110012111 in words is "twelve billion, one hundred ten million, twelve thousand, one hundred eleven".