4002220171 has 2 divisors, whose sum is σ = 4002220172. Its totient is φ = 4002220170.

The previous prime is 4002220153. The next prime is 4002220177. The reversal of 4002220171 is 1710222004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4002220171 - 2⁹ = 4002219659 is a prime.

It is not a weakly prime, because it can be changed into another prime (4002220177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001110085 + 2001110086.

It is an arithmetic number, because the mean of its divisors is an integer number (2001110086).

Almost surely, 2^4002220171 is an apocalyptic number.

4002220171 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002220171 is an equidigital number, since it uses as much as digits as its factorization.

4002220171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 4002220171 is about 63263.1027614043. The cubic root of 4002220171 is about 1587.6946894629.

Adding to 4002220171 its reverse (1710222004), we get a palindrome (5712442175).

The spelling of 4002220171 in words is "four billion, two million, two hundred twenty thousand, one hundred seventy-one".