12242184145 has 4 divisors (see below), whose sum is σ = 14690620980. Its totient is φ = 9793747312.

The previous prime is 12242184133. The next prime is 12242184161. The reversal of 12242184145 is 54148124221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4892722704 + 7349461441 = 69948^2 + 85729^2 .

It is a cyclic number.

It is not a de Polignac number, because 12242184145 - 2²¹ = 12240086993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12242184145.

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 3 ways as a sum of consecutive naturals, for example, 1224218410 + ... + 1224218419.

It is an arithmetic number, because the mean of its divisors is an integer number (3672655245).

Almost surely, 2^12242184145 is an apocalyptic number.

It is an amenable number.

12242184145 is a deficient number, since it is larger than the sum of its proper divisors (2448436835).

12242184145 is an equidigital number, since it uses as much as digits as its factorization.

12242184145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448436834.

The product of its digits is 20480, while the sum is 34.

The spelling of 12242184145 in words is "twelve billion, two hundred forty-two million, one hundred eighty-four thousand, one hundred forty-five".