212100134 has 16 divisors (see below), whose sum is σ = 326997216. Its totient is φ = 103118400.

The previous prime is 212100127. The next prime is 212100139. The reversal of 212100134 is 431001212.

212100134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21344 + ... + 29660.

It is an arithmetic number, because the mean of its divisors is an integer number (20437326).

Almost surely, 2^212100134 is an apocalyptic number.

212100134 is a deficient number, since it is larger than the sum of its proper divisors (114897082).

212100134 is a wasteful number, since it uses less digits than its factorization.

212100134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212100134 is about 14563.6579882940. The cubic root of 212100134 is about 596.3670602746.

Adding to 212100134 its reverse (431001212), we get a palindrome (643101346).

The spelling of 212100134 in words is "two hundred twelve million, one hundred thousand, one hundred thirty-four".