12111210638069 has 4 divisors (see below), whose sum is σ = 12157260868896. Its totient is φ = 12065160407244.

The previous prime is 12111210638057. The next prime is 12111210638089. The reversal of 12111210638069 is 96083601211121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12111210638069 - 2⁴ = 12111210638053 is a prime.

It is a super-2 number, since 2×12111210638069² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111210638039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23025115019 + ... + 23025115544.

It is an arithmetic number, because the mean of its divisors is an integer number (3039315217224).

Almost surely, 2^{12111210638069} is an apocalyptic number.

It is an amenable number.

12111210638069 is a deficient number, since it is larger than the sum of its proper divisors (46050230827).

12111210638069 is an equidigital number, since it uses as much as digits as its factorization.

12111210638069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46050230826.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 12111210638069 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, six hundred thirty-eight thousand, sixty-nine".