312230212 has 24 divisors (see below), whose sum is σ = 637749504. Its totient is φ = 130965312.

The previous prime is 312230197. The next prime is 312230257. The reversal of 312230212 is 212032213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117313 + ... + 119944.

It is an arithmetic number, because the mean of its divisors is an integer number (26572896).

Almost surely, 2^312230212 is an apocalyptic number.

It is an amenable number.

312230212 is an abundant number, since it is smaller than the sum of its proper divisors (325519292).

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

312230212 is a wasteful number, since it uses less digits than its factorization.

312230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237315 (or 237313 counting only the distinct ones).

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

The square root of 312230212 is about 17670.0371250317. The cubic root of 312230212 is about 678.4090633106.

Adding to 312230212 its reverse (212032213), we get a palindrome (524262425).

The spelling of 312230212 in words is "three hundred twelve million, two hundred thirty thousand, two hundred twelve".