212120211122 has 16 divisors (see below), whose sum is σ = 337174488000. Its totient is φ = 99803643120.

The previous prime is 212120211067. The next prime is 212120211137. The reversal of 212120211122 is 221112021212.

212120211122 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 212120211122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18726254 + ... + 18737577.

It is an arithmetic number, because the mean of its divisors is an integer number (21073405500).

Almost surely, 2^212120211122 is an apocalyptic number.

212120211122 is a deficient number, since it is larger than the sum of its proper divisors (125054276878).

212120211122 is a wasteful number, since it uses less digits than its factorization.

212120211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37464001.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212120211122 its reverse (221112021212), we get a palindrome (433232232334).

The spelling of 212120211122 in words is "two hundred twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-two".