12212011120171 has 2 divisors, whose sum is σ = 12212011120172. Its totient is φ = 12212011120170.

The previous prime is 12212011120139. The next prime is 12212011120241. The reversal of 12212011120171 is 17102111021221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12212011120171 - 2⁵ = 12212011120139 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212011120121) 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, 6106005560085 + 6106005560086.

It is an arithmetic number, because the mean of its divisors is an integer number (6106005560086).

Almost surely, 2^{12212011120171} is an apocalyptic number.

12212011120171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212011120171 is an equidigital number, since it uses as much as digits as its factorization.

12212011120171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 12212011120171 its reverse (17102111021221), we get a palindrome (29314122141392).

The spelling of 12212011120171 in words is "twelve trillion, two hundred twelve billion, eleven million, one hundred twenty thousand, one hundred seventy-one".