512125212 has 12 divisors (see below), whose sum is σ = 1194958856. Its totient is φ = 170708400.

The previous prime is 512125139. The next prime is 512125213. The reversal of 512125212 is 212521215.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512125213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21338539 + ... + 21338562.

Almost surely, 2^512125212 is an apocalyptic number.

It is an amenable number.

512125212 is an abundant number, since it is smaller than the sum of its proper divisors (682833644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512125212 is a wasteful number, since it uses less digits than its factorization.

512125212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42677108 (or 42677106 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 512125212 is about 22630.1836492769. The cubic root of 512125212 is about 800.0652092679.

Adding to 512125212 its reverse (212521215), we get a palindrome (724646427).

The spelling of 512125212 in words is "five hundred twelve million, one hundred twenty-five thousand, two hundred twelve".