12265897111 has 4 divisors (see below), whose sum is σ = 13209427672. Its totient is φ = 11322366552.

The previous prime is 12265897087. The next prime is 12265897117. The reversal of 12265897111 is 11179856221.

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 12265897111 - 2²¹ = 12263799959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12265897117) 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, 471765261 + ... + 471765286.

It is an arithmetic number, because the mean of its divisors is an integer number (3302356918).

Almost surely, 2^12265897111 is an apocalyptic number.

12265897111 is a deficient number, since it is larger than the sum of its proper divisors (943530561).

12265897111 is an equidigital number, since it uses as much as digits as its factorization.

12265897111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943530560.

The product of its digits is 60480, while the sum is 43.

The spelling of 12265897111 in words is "twelve billion, two hundred sixty-five million, eight hundred ninety-seven thousand, one hundred eleven".