20222002222171 has 2 divisors, whose sum is σ = 20222002222172. Its totient is φ = 20222002222170.

The previous prime is 20222002222157. The next prime is 20222002222231. The reversal of 20222002222171 is 17122220022202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20222002222171 - 2⁷ = 20222002222043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20222002222271) 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, 10111001111085 + 10111001111086.

It is an arithmetic number, because the mean of its divisors is an integer number (10111001111086).

Almost surely, 2^{20222002222171} is an apocalyptic number.

20222002222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222002222171 is an equidigital number, since it uses as much as digits as its factorization.

20222002222171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 20222002222171 its reverse (17122220022202), we get a palindrome (37344222244373).

The spelling of 20222002222171 in words is "twenty trillion, two hundred twenty-two billion, two million, two hundred twenty-two thousand, one hundred seventy-one".