42440011221067 has 2 divisors, whose sum is σ = 42440011221068. Its totient is φ = 42440011221066.

The previous prime is 42440011221017. The next prime is 42440011221119. The reversal of 42440011221067 is 76012211004424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42440011221067 - 2¹⁹ = 42440010696779 is a prime.

It is not a weakly prime, because it can be changed into another prime (42440011221017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21220005610533 + 21220005610534.

It is an arithmetic number, because the mean of its divisors is an integer number (21220005610534).

Almost surely, 2^{42440011221067} is an apocalyptic number.

42440011221067 is a deficient number, since it is larger than the sum of its proper divisors (1).

42440011221067 is an equidigital number, since it uses as much as digits as its factorization.

42440011221067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 42440011221067 in words is "forty-two trillion, four hundred forty billion, eleven million, two hundred twenty-one thousand, sixty-seven".