4221118273 has 4 divisors (see below), whose sum is σ = 4300762068. Its totient is φ = 4141474480.

The previous prime is 4221118211. The next prime is 4221118303. The reversal of 4221118273 is 3728111224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3128947969 + 1092170304 = 55937^2 + 33048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221118273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221118073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39821818 + ... + 39821923.

It is an arithmetic number, because the mean of its divisors is an integer number (1075190517).

Almost surely, 2^4221118273 is an apocalyptic number.

It is an amenable number.

4221118273 is a deficient number, since it is larger than the sum of its proper divisors (79643795).

4221118273 is an equidigital number, since it uses as much as digits as its factorization.

4221118273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79643794.

The product of its digits is 5376, while the sum is 31.

The square root of 4221118273 is about 64970.1337000317. The cubic root of 4221118273 is about 1616.1283188602.

Adding to 4221118273 its reverse (3728111224), we get a palindrome (7949229497).

The spelling of 4221118273 in words is "four billion, two hundred twenty-one million, one hundred eighteen thousand, two hundred seventy-three".