212120112021122 has 64 divisors (see below), whose sum is σ = 333103022697600. Its totient is φ = 101178017740800.

The previous prime is 212120112021091. The next prime is 212120112021131. The reversal of 212120112021122 is 221120211021212.

212120112021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212120112021094 and 212120112021103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5650941938 + ... + 5650979474.

It is an arithmetic number, because the mean of its divisors is an integer number (5204734729650).

Almost surely, 2^{212120112021122} is an apocalyptic number.

212120112021122 is a deficient number, since it is larger than the sum of its proper divisors (120982910676478).

212120112021122 is a wasteful number, since it uses less digits than its factorization.

212120112021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39651.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212120112021122 its reverse (221120211021212), we get a palindrome (433240323042334).

The spelling of 212120112021122 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred twelve million, twenty-one thousand, one hundred twenty-two".