212112163 has 6 divisors (see below), whose sum is σ = 217142772. Its totient is φ = 207086040.

The previous prime is 212112161. The next prime is 212112167. The reversal of 212112163 is 361211212.

It is not a de Polignac number, because 212112163 - 2¹ = 212112161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212112163.

It is not an unprimeable number, because it can be changed into a prime (212112161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94393 + ... + 96613.

It is an arithmetic number, because the mean of its divisors is an integer number (36190462).

Almost surely, 2^212112163 is an apocalyptic number.

212112163 is a deficient number, since it is larger than the sum of its proper divisors (5030609).

212112163 is an frugal number, since it uses more digits than its factorization.

212112163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485 (or 2264 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 212112163 is about 14564.0709624747. The cubic root of 212112163 is about 596.3783341379.

Adding to 212112163 its reverse (361211212), we get a palindrome (573323375).

The spelling of 212112163 in words is "two hundred twelve million, one hundred twelve thousand, one hundred sixty-three".