505212012 has 24 divisors (see below), whose sum is σ = 1309809200. Its totient is φ = 168403968.

The previous prime is 505212011. The next prime is 505212017. The reversal of 505212012 is 210212505.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (505212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2338837 + ... + 2339052.

Almost surely, 2^505212012 is an apocalyptic number.

It is an amenable number.

505212012 is an abundant number, since it is smaller than the sum of its proper divisors (804597188).

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

505212012 is a wasteful number, since it uses less digits than its factorization.

505212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677902 (or 4677894 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 505212012 is about 22476.9217643342. The cubic root of 505212012 is about 796.4488495708.

Adding to 505212012 its reverse (210212505), we get a palindrome (715424517).

The spelling of 505212012 in words is "five hundred five million, two hundred twelve thousand, twelve".