422244420002021 has 2 divisors, whose sum is σ = 422244420002022. Its totient is φ = 422244420002020.

The previous prime is 422244420001951. The next prime is 422244420002029. The reversal of 422244420002021 is 120200024442224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365215567456996 + 57028852545025 = 19110614^2 + 7551745^2 .

It is a cyclic number.

It is not a de Polignac number, because 422244420002021 - 2¹⁴ = 422244419985637 is a prime.

It is a super-2 number, since 2×422244420002021² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422244420002029) 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, 211122210001010 + 211122210001011.

It is an arithmetic number, because the mean of its divisors is an integer number (211122210001011).

Almost surely, 2^{422244420002021} is an apocalyptic number.

It is an amenable number.

422244420002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

422244420002021 is an equidigital number, since it uses as much as digits as its factorization.

422244420002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 422244420002021 its reverse (120200024442224), we get a palindrome (542444444444245).

The spelling of 422244420002021 in words is "four hundred twenty-two trillion, two hundred forty-four billion, four hundred twenty million, two thousand, twenty-one".