212302312 has 16 divisors (see below), whose sum is σ = 405578340. Its totient is φ = 104148096.

The previous prime is 212302289. The next prime is 212302327. The reversal of 212302312 is 213203212.

It can be written as a sum of positive squares in 2 ways, for example, as 212168356 + 133956 = 14566^2 + 366^2 .

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, 249933 + ... + 250780.

Almost surely, 2^212302312 is an apocalyptic number.

It is an amenable number.

212302312 is a deficient number, since it is larger than the sum of its proper divisors (193276028).

212302312 is a wasteful number, since it uses less digits than its factorization.

212302312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500772 (or 500768 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212302312 is about 14570.5975169174. The cubic root of 212302312 is about 596.5564896837.

Adding to 212302312 its reverse (213203212), we get a palindrome (425505524).

The spelling of 212302312 in words is "two hundred twelve million, three hundred two thousand, three hundred twelve".