212100068 has 12 divisors (see below), whose sum is σ = 372363180. Its totient is φ = 105710592.

The previous prime is 212100067. The next prime is 212100071. The reversal of 212100068 is 860001212.

212100068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 65157184 + 146942884 = 8072^2 + 12122^2 .

It is not an unprimeable number, because it can be changed into a prime (212100067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83453 + ... + 85956.

It is an arithmetic number, because the mean of its divisors is an integer number (31030265).

Almost surely, 2^212100068 is an apocalyptic number.

It is an amenable number.

212100068 is a deficient number, since it is larger than the sum of its proper divisors (160263112).

212100068 is a wasteful number, since it uses less digits than its factorization.

212100068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169726 (or 169724 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 212100068 is about 14563.6557223796. The cubic root of 212100068 is about 596.3669984167.

The spelling of 212100068 in words is "two hundred twelve million, one hundred thousand, sixty-eight".