122434242044021 has 2 divisors, whose sum is σ = 122434242044022. Its totient is φ = 122434242044020.

The previous prime is 122434242044003. The next prime is 122434242044029. The reversal of 122434242044021 is 120440242434221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115992361500625 + 6441880543396 = 10769975^2 + 2538086^2 .

It is a cyclic number.

It is not a de Polignac number, because 122434242044021 - 2¹⁸ = 122434241781877 is a prime.

It is a super-2 number, since 2×122434242044021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122434242044029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61217121022010 + 61217121022011.

It is an arithmetic number, because the mean of its divisors is an integer number (61217121022011).

Almost surely, 2^{122434242044021} is an apocalyptic number.

It is an amenable number.

122434242044021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122434242044021 is an equidigital number, since it uses as much as digits as its factorization.

122434242044021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 122434242044021 its reverse (120440242434221), we get a palindrome (242874484478242).

The spelling of 122434242044021 in words is "one hundred twenty-two trillion, four hundred thirty-four billion, two hundred forty-two million, forty-four thousand, twenty-one".