212112121211182 has 4 divisors (see below), whose sum is σ = 318168181816776. Its totient is φ = 106056060605590.

The previous prime is 212112121211167. The next prime is 212112121211183. The reversal of 212112121211182 is 281112121211212.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212112121211182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112121211183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53028030302794 + ... + 53028030302797.

It is an arithmetic number, because the mean of its divisors is an integer number (79542045454194).

Almost surely, 2^{212112121211182} is an apocalyptic number.

212112121211182 is a deficient number, since it is larger than the sum of its proper divisors (106056060605594).

212112121211182 is a wasteful number, since it uses less digits than its factorization.

212112121211182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106056060605593.

The product of its digits is 512, while the sum is 28.

Adding to 212112121211182 its reverse (281112121211212), we get a palindrome (493224242422394).

The spelling of 212112121211182 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, one hundred eighty-two".