12194849121 has 32 divisors (see below), whose sum is σ = 20055490560. Its totient is φ = 6418488384.

The previous prime is 12194849087. The next prime is 12194849123.

12194849121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12194849121 - 2¹¹ = 12194847073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12194849123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78160 + ... + 174638.

It is an arithmetic number, because the mean of its divisors is an integer number (626734080).

Almost surely, 2^12194849121 is an apocalyptic number.

It is an amenable number.

12194849121 is a deficient number, since it is larger than the sum of its proper divisors (7860641439).

12194849121 is a wasteful number, since it uses less digits than its factorization.

12194849121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96965.

The product of its digits is 41472, while the sum is 42.

The spelling of 12194849121 in words is "twelve billion, one hundred ninety-four million, eight hundred forty-nine thousand, one hundred twenty-one".