12022000121 has 2 divisors, whose sum is σ = 12022000122. Its totient is φ = 12022000120.

The previous prime is 12022000091. The next prime is 12022000127. The reversal of 12022000121 is 12100022021.

It is a happy number.

12022000121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9825765625 + 2196234496 = 99125^2 + 46864^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022000121 - 2¹⁸ = 12021737977 is a prime.

It is not a weakly prime, because it can be changed into another prime (12022000127) 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, 6011000060 + 6011000061.

It is an arithmetic number, because the mean of its divisors is an integer number (6011000061).

Almost surely, 2^12022000121 is an apocalyptic number.

It is an amenable number.

12022000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022000121 is an equidigital number, since it uses as much as digits as its factorization.

12022000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12022000121 its reverse (12100022021), we get a palindrome (24122022142).

The spelling of 12022000121 in words is "twelve billion, twenty-two million, one hundred twenty-one", and thus it is an aban number.