504424222512121 has 2 divisors, whose sum is σ = 504424222512122. Its totient is φ = 504424222512120.

The previous prime is 504424222511971. The next prime is 504424222512137. The reversal of 504424222512121 is 121215222424405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366043372707600 + 138380849804521 = 19132260^2 + 11763539^2 .

It is a cyclic number.

It is not a de Polignac number, because 504424222512121 - 2²¹ = 504424220414969 is a prime.

It is not a weakly prime, because it can be changed into another prime (504424222512191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252212111256060 + 252212111256061.

It is an arithmetic number, because the mean of its divisors is an integer number (252212111256061).

Almost surely, 2^{504424222512121} is an apocalyptic number.

It is an amenable number.

504424222512121 is a deficient number, since it is larger than the sum of its proper divisors (1).

504424222512121 is an equidigital number, since it uses as much as digits as its factorization.

504424222512121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102400, while the sum is 37.

Adding to 504424222512121 its reverse (121215222424405), we get a palindrome (625639444936526).

The spelling of 504424222512121 in words is "five hundred four trillion, four hundred twenty-four billion, two hundred twenty-two million, five hundred twelve thousand, one hundred twenty-one".