212102210012122 has 32 divisors (see below), whose sum is σ = 326303509529088. Its totient is φ = 103340643120000.

The previous prime is 212102210012113. The next prime is 212102210012171. The reversal of 212102210012122 is 221210012201212.

212102210012122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212102210012122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231363172 + ... + 232278112.

It is an arithmetic number, because the mean of its divisors is an integer number (10196984672784).

Almost surely, 2^{212102210012122} is an apocalyptic number.

212102210012122 is a deficient number, since it is larger than the sum of its proper divisors (114201299516966).

212102210012122 is a wasteful number, since it uses less digits than its factorization.

212102210012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918366.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212102210012122 its reverse (221210012201212), we get a palindrome (433312222213334).

The spelling of 212102210012122 in words is "two hundred twelve trillion, one hundred two billion, two hundred ten million, twelve thousand, one hundred twenty-two".