212120121100012 has 48 divisors (see below), whose sum is σ = 376573578292800. Its totient is φ = 104537251065600.

The previous prime is 212120121099977. The next prime is 212120121100067. The reversal of 212120121100012 is 210001121021212.

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 15 ways as a sum of consecutive naturals, for example, 700472289 + ... + 700775047.

It is an arithmetic number, because the mean of its divisors is an integer number (7845282881100).

Almost surely, 2^{212120121100012} is an apocalyptic number.

It is an amenable number.

212120121100012 is a deficient number, since it is larger than the sum of its proper divisors (164453457192788).

212120121100012 is a wasteful number, since it uses less digits than its factorization.

212120121100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310666 (or 310664 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212120121100012 its reverse (210001121021212), we get a palindrome (422121242121224).

The spelling of 212120121100012 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred twenty-one million, one hundred thousand, twelve".