212013235171 has 2 divisors, whose sum is σ = 212013235172. Its totient is φ = 212013235170.

The previous prime is 212013235151. The next prime is 212013235207. The reversal of 212013235171 is 171532310212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212013235171 - 2⁹ = 212013234659 is a prime.

It is a super-2 number, since 2×212013235171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212013235151) 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, 106006617585 + 106006617586.

It is an arithmetic number, because the mean of its divisors is an integer number (106006617586).

Almost surely, 2^212013235171 is an apocalyptic number.

212013235171 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013235171 is an equidigital number, since it uses as much as digits as its factorization.

212013235171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 212013235171 its reverse (171532310212), we get a palindrome (383545545383).

The spelling of 212013235171 in words is "two hundred twelve billion, thirteen million, two hundred thirty-five thousand, one hundred seventy-one".