312204012 has 48 divisors (see below), whose sum is σ = 748349952. Its totient is φ = 101243520.

The previous prime is 312203989. The next prime is 312204017. The reversal of 312204012 is 210402213.

It is a super-2 number, since 2×312204012² = 194942690217792288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312203982 and 312204000.

It is not an unprimeable number, because it can be changed into a prime (312204017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238953 + ... + 240255.

It is an arithmetic number, because the mean of its divisors is an integer number (15590624).

Almost surely, 2^312204012 is an apocalyptic number.

It is an amenable number.

312204012 is an abundant number, since it is smaller than the sum of its proper divisors (436145940).

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

312204012 is a wasteful number, since it uses less digits than its factorization.

312204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 312204012 is about 17669.2957414833. The cubic root of 312204012 is about 678.3900871258.

Adding to 312204012 its reverse (210402213), we get a palindrome (522606225).

The spelling of 312204012 in words is "three hundred twelve million, two hundred four thousand, twelve".