12195056074 has 4 divisors (see below), whose sum is σ = 18292584114. Its totient is φ = 6097528036.

The previous prime is 12195056047. The next prime is 12195056077. The reversal of 12195056074 is 47065059121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47065059121 = 89 ⋅528820889.

It can be written as a sum of positive squares in only one way, i.e., 10824945849 + 1370110225 = 104043^2 + 37015^2 .

It is not an unprimeable number, because it can be changed into a prime (12195056077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3048764017 + ... + 3048764020.

Almost surely, 2^12195056074 is an apocalyptic number.

12195056074 is a deficient number, since it is larger than the sum of its proper divisors (6097528040).

12195056074 is an equidigital number, since it uses as much as digits as its factorization.

12195056074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097528039.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 12195056074 in words is "twelve billion, one hundred ninety-five million, fifty-six thousand, seventy-four".