12210244121 has 2 divisors, whose sum is σ = 12210244122. Its totient is φ = 12210244120.

The previous prime is 12210244093. The next prime is 12210244159. The reversal of 12210244121 is 12144201221.

12210244121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6605625625 + 5604618496 = 81275^2 + 74864^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210244121 - 2¹⁴ = 12210227737 is a prime.

It is a super-2 number, since 2×12210244121² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12210244093 and 12210244102.

It is not a weakly prime, because it can be changed into another prime (12210244621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105122060 + 6105122061.

It is an arithmetic number, because the mean of its divisors is an integer number (6105122061).

Almost surely, 2^12210244121 is an apocalyptic number.

It is an amenable number.

12210244121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210244121 is an equidigital number, since it uses as much as digits as its factorization.

12210244121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12210244121 its reverse (12144201221), we get a palindrome (24354445342).

The spelling of 12210244121 in words is "twelve billion, two hundred ten million, two hundred forty-four thousand, one hundred twenty-one".