312210012 has 24 divisors (see below), whose sum is σ = 728800912. Its totient is φ = 104025600.

The previous prime is 312210011. The next prime is 312210013. The reversal of 312210012 is 210012213.

It is an interprime number because it is at equal distance from previous prime (312210011) and next prime (312210013).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 312210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312210011) 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, 36462 + ... + 44202.

Almost surely, 2^312210012 is an apocalyptic number.

It is an amenable number.

312210012 is an abundant number, since it is smaller than the sum of its proper divisors (416590900).

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

312210012 is a wasteful number, since it uses less digits than its factorization.

312210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109 (or 11107 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 312210012 is about 17669.4655267215. The cubic root of 312210012 is about 678.3944329107.

Adding to 312210012 its reverse (210012213), we get a palindrome (522222225).

The spelling of 312210012 in words is "three hundred twelve million, two hundred ten thousand, twelve".