121424111201 has 2 divisors, whose sum is σ = 121424111202. Its totient is φ = 121424111200.

The previous prime is 121424111191. The next prime is 121424111351. The reversal of 121424111201 is 102111424121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120998926801 + 425184400 = 347849^2 + 20620^2 .

It is a cyclic number.

It is not a de Polignac number, because 121424111201 - 2¹⁰ = 121424110177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121424111701) 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, 60712055600 + 60712055601.

It is an arithmetic number, because the mean of its divisors is an integer number (60712055601).

Almost surely, 2^121424111201 is an apocalyptic number.

It is an amenable number.

121424111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121424111201 is an equidigital number, since it uses as much as digits as its factorization.

121424111201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121424111201 its reverse (102111424121), we get a palindrome (223535535322).

The spelling of 121424111201 in words is "one hundred twenty-one billion, four hundred twenty-four million, one hundred eleven thousand, two hundred one".