4021442410121 has 2 divisors, whose sum is σ = 4021442410122. Its totient is φ = 4021442410120.

The previous prime is 4021442410001. The next prime is 4021442410177. The reversal of 4021442410121 is 1210142441204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2556529177225 + 1464913232896 = 1598915^2 + 1210336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021442410121 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021442410721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010721205060 + 2010721205061.

It is an arithmetic number, because the mean of its divisors is an integer number (2010721205061).

Almost surely, 2^{4021442410121} is an apocalyptic number.

It is an amenable number.

4021442410121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021442410121 is an equidigital number, since it uses as much as digits as its factorization.

4021442410121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 4021442410121 its reverse (1210142441204), we get a palindrome (5231584851325).

The spelling of 4021442410121 in words is "four trillion, twenty-one billion, four hundred forty-two million, four hundred ten thousand, one hundred twenty-one".