212000121211122 has 48 divisors (see below), whose sum is σ = 471915367522560. Its totient is φ = 68732404968096.

The previous prime is 212000121211093. The next prime is 212000121211141. The reversal of 212000121211122 is 221112121000212.

212000121211122 is a `hidden beast` number, since 212 + 0 + 0 + 0 + 121 + 211 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212000121211095 and 212000121211104.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 54582018 + ... + 58336925.

It is an arithmetic number, because the mean of its divisors is an integer number (9831570156720).

Almost surely, 2^{212000121211122} is an apocalyptic number.

212000121211122 is an abundant number, since it is smaller than the sum of its proper divisors (259915246311438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212000121211122 is a wasteful number, since it uses less digits than its factorization.

212000121211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112921807 (or 112921804 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212000121211122 its reverse (221112121000212), we get a palindrome (433112242211334).

The spelling of 212000121211122 in words is "two hundred twelve trillion, one hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".