522142435112621 has 2 divisors, whose sum is σ = 522142435112622. Its totient is φ = 522142435112620.

The previous prime is 522142435112591. The next prime is 522142435112693. The reversal of 522142435112621 is 126211534241225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269425600527721 + 252716834584900 = 16414189^2 + 15897070^2 .

It is a cyclic number.

It is not a de Polignac number, because 522142435112621 - 2⁴⁶ = 451773690934957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522142435117621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261071217556310 + 261071217556311.

It is an arithmetic number, because the mean of its divisors is an integer number (261071217556311).

Almost surely, 2^{522142435112621} is an apocalyptic number.

It is an amenable number.

522142435112621 is a deficient number, since it is larger than the sum of its proper divisors (1).

522142435112621 is an equidigital number, since it uses as much as digits as its factorization.

522142435112621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 41.

Adding to 522142435112621 its reverse (126211534241225), we get a palindrome (648353969353846).

The spelling of 522142435112621 in words is "five hundred twenty-two trillion, one hundred forty-two billion, four hundred thirty-five million, one hundred twelve thousand, six hundred twenty-one".