12012194465 has 8 divisors (see below), whose sum is σ = 14418048168. Its totient is φ = 9607479040.

The previous prime is 12012194449. The next prime is 12012194531. The reversal of 12012194465 is 56449121021.

It can be written as a sum of positive squares in 4 ways, for example, as 544568896 + 11467625569 = 23336^2 + 107087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12012194465 - 2⁴ = 12012194449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261176 + ... + 303705.

It is an arithmetic number, because the mean of its divisors is an integer number (1802256021).

Almost surely, 2^12012194465 is an apocalyptic number.

It is an amenable number.

12012194465 is a deficient number, since it is larger than the sum of its proper divisors (2405853703).

12012194465 is an equidigital number, since it uses as much as digits as its factorization.

12012194465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569139.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 12012194465 in words is "twelve billion, twelve million, one hundred ninety-four thousand, four hundred sixty-five".