12122725422146 has 4 divisors (see below), whose sum is σ = 18184088133222. Its totient is φ = 6061362711072.

The previous prime is 12122725422121. The next prime is 12122725422163. The reversal of 12122725422146 is 64122452722121.

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

It can be written as a sum of positive squares in only one way, i.e., 6618985962121 + 5503739460025 = 2572739^2 + 2346005^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030681355535 + ... + 3030681355538.

Almost surely, 2^{12122725422146} is an apocalyptic number.

12122725422146 is a deficient number, since it is larger than the sum of its proper divisors (6061362711076).

12122725422146 is an equidigital number, since it uses as much as digits as its factorization.

12122725422146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061362711075.

The product of its digits is 215040, while the sum is 41.

The spelling of 12122725422146 in words is "twelve trillion, one hundred twenty-two billion, seven hundred twenty-five million, four hundred twenty-two thousand, one hundred forty-six".