12122184617 has 2 divisors, whose sum is σ = 12122184618. Its totient is φ = 12122184616.

The previous prime is 12122184601. The next prime is 12122184637. The reversal of 12122184617 is 71648122121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7246095376 + 4876089241 = 85124^2 + 69829^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122184617 - 2⁴ = 12122184601 is a prime.

It is not a weakly prime, because it can be changed into another prime (12122184637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061092308 + 6061092309.

It is an arithmetic number, because the mean of its divisors is an integer number (6061092309).

Almost surely, 2^12122184617 is an apocalyptic number.

It is an amenable number.

12122184617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122184617 is an equidigital number, since it uses as much as digits as its factorization.

12122184617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 35.

The spelling of 12122184617 in words is "twelve billion, one hundred twenty-two million, one hundred eighty-four thousand, six hundred seventeen".