4221118073 has 2 divisors, whose sum is σ = 4221118074. Its totient is φ = 4221118072.

The previous prime is 4221118063. The next prime is 4221118093. The reversal of 4221118073 is 3708111224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2299873849 + 1921244224 = 47957^2 + 43832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221118073 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221118043) 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, 2110559036 + 2110559037.

It is an arithmetic number, because the mean of its divisors is an integer number (2110559037).

Almost surely, 2^4221118073 is an apocalyptic number.

It is an amenable number.

4221118073 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221118073 is an equidigital number, since it uses as much as digits as its factorization.

4221118073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 4221118073 is about 64970.1321608630. The cubic root of 4221118073 is about 1616.1282933357.

Adding to 4221118073 its reverse (3708111224), we get a palindrome (7929229297).

The spelling of 4221118073 in words is "four billion, two hundred twenty-one million, one hundred eighteen thousand, seventy-three".