12196911 has 4 divisors (see below), whose sum is σ = 16262552. Its totient is φ = 8131272.

The previous prime is 12196901. The next prime is 12196949. The reversal of 12196911 is 11969121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12196911 - 2⁷ = 12196783 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 (12196901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032816 + ... + 2032821.

It is an arithmetic number, because the mean of its divisors is an integer number (4065638).

Almost surely, 2^12196911 is an apocalyptic number.

12196911 is a deficient number, since it is larger than the sum of its proper divisors (4065641).

12196911 is an equidigital number, since it uses as much as digits as its factorization.

12196911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065640.

The product of its digits is 972, while the sum is 30.

The square root of 12196911 is about 3492.4076222572. The cubic root of 12196911 is about 230.1883208736.

It can be divided in two parts, 1 and 2196911, that added together give a palindrome (2196912).

The spelling of 12196911 in words is "twelve million, one hundred ninety-six thousand, nine hundred eleven".