212100122012012 has 12 divisors (see below), whose sum is σ = 399727153022736. Its totient is φ = 97892364005520.

The previous prime is 212100122011997. The next prime is 212100122012039. The reversal of 212100122012012 is 210210221001212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039424250064 + ... + 2039424250167.

It is an arithmetic number, because the mean of its divisors is an integer number (33310596085228).

Almost surely, 2^{212100122012012} is an apocalyptic number.

It is an amenable number.

212100122012012 is a deficient number, since it is larger than the sum of its proper divisors (187627031010724).

212100122012012 is a wasteful number, since it uses less digits than its factorization.

212100122012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078848500248 (or 4078848500246 counting only the distinct ones).

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

Adding to 212100122012012 its reverse (210210221001212), we get a palindrome (422310343013224).

The spelling of 212100122012012 in words is "two hundred twelve trillion, one hundred billion, one hundred twenty-two million, twelve thousand, twelve".