4422168121 has 12 divisors (see below), whose sum is σ = 5145299940. Its totient is φ = 3789586080.

The previous prime is 4422168089. The next prime is 4422168133. The reversal of 4422168121 is 1218612244.

It can be written as a sum of positive squares in 2 ways, for example, as 679175721 + 3742992400 = 26061^2 + 61180^2 .

It is not a de Polignac number, because 4422168121 - 2⁵ = 4422168089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4422168151) 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 11 ways as a sum of consecutive naturals, for example, 325615 + ... + 338923.

It is an arithmetic number, because the mean of its divisors is an integer number (428774995).

Almost surely, 2^4422168121 is an apocalyptic number.

It is an amenable number.

4422168121 is a deficient number, since it is larger than the sum of its proper divisors (723131819).

4422168121 is a wasteful number, since it uses less digits than its factorization.

4422168121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20104 (or 20097 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 4422168121 is about 66499.3843655714. The cubic root of 4422168121 is about 1641.3898738485.

The spelling of 4422168121 in words is "four billion, four hundred twenty-two million, one hundred sixty-eight thousand, one hundred twenty-one".