212130334 has 32 divisors (see below), whose sum is σ = 369137664. Its totient is φ = 90620640.

The previous prime is 212130313. The next prime is 212130337. The reversal of 212130334 is 433031212.

212130334 is digitally balanced in base 2, 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 (212130337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12817 + ... + 24259.

It is an arithmetic number, because the mean of its divisors is an integer number (11535552).

Almost surely, 2^212130334 is an apocalyptic number.

212130334 is a deficient number, since it is larger than the sum of its proper divisors (157007330).

212130334 is a wasteful number, since it uses less digits than its factorization.

212130334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 212130334 is about 14564.6947788136. The cubic root of 212130334 is about 596.3953636207.

Adding to 212130334 its reverse (433031212), we get a palindrome (645161546).

The spelling of 212130334 in words is "two hundred twelve million, one hundred thirty thousand, three hundred thirty-four".