222222022012171 has 2 divisors, whose sum is σ = 222222022012172. Its totient is φ = 222222022012170.

The previous prime is 222222022012117. The next prime is 222222022012183. The reversal of 222222022012171 is 171210220222222.

Together with previous prime (222222022012117) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222222022012171 - 2¹⁹ = 222222021487883 is a prime.

It is not a weakly prime, because it can be changed into another prime (222222025012171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111011006085 + 111111011006086.

It is an arithmetic number, because the mean of its divisors is an integer number (111111011006086).

Almost surely, 2^{222222022012171} is an apocalyptic number.

222222022012171 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222022012171 is an equidigital number, since it uses as much as digits as its factorization.

222222022012171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 222222022012171 its reverse (171210220222222), we get a palindrome (393432242234393).

The spelling of 222222022012171 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, twenty-two million, twelve thousand, one hundred seventy-one".