12422160644021 has 2 divisors, whose sum is σ = 12422160644022. Its totient is φ = 12422160644020.

The previous prime is 12422160643979. The next prime is 12422160644087. The reversal of 12422160644021 is 12044606122421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12379040044996 + 43120599025 = 3518386^2 + 207655^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422160644021 - 2¹⁴ = 12422160627637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12422160647021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211080322010 + 6211080322011.

It is an arithmetic number, because the mean of its divisors is an integer number (6211080322011).

Almost surely, 2^{12422160644021} is an apocalyptic number.

It is an amenable number.

12422160644021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422160644021 is an equidigital number, since it uses as much as digits as its factorization.

12422160644021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 12422160644021 its reverse (12044606122421), we get a palindrome (24466766766442).

The spelling of 12422160644021 in words is "twelve trillion, four hundred twenty-two billion, one hundred sixty million, six hundred forty-four thousand, twenty-one".