2220020122171 has 2 divisors, whose sum is σ = 2220020122172. Its totient is φ = 2220020122170.

The previous prime is 2220020122169. The next prime is 2220020122183. The reversal of 2220020122171 is 1712210200222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2220020122171 - 2¹ = 2220020122169 is a prime.

Together with 2220020122169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2220020122471) 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 as a sum of consecutive naturals, namely, 1110010061085 + 1110010061086.

It is an arithmetic number, because the mean of its divisors is an integer number (1110010061086).

Almost surely, 2^{2220020122171} is an apocalyptic number.

2220020122171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220020122171 is an equidigital number, since it uses as much as digits as its factorization.

2220020122171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 2220020122171 its reverse (1712210200222), we get a palindrome (3932230322393).

The spelling of 2220020122171 in words is "two trillion, two hundred twenty billion, twenty million, one hundred twenty-two thousand, one hundred seventy-one".