312213323312212 has 48 divisors (see below), whose sum is σ = 624978665700480. Its totient is φ = 133687425779712.

The previous prime is 312213323312203. The next prime is 312213323312237. The reversal of 312213323312212 is 212213323312213.

It is a super-3 number, since 3×312213323312212³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1755012964 + ... + 1755190852.

It is an arithmetic number, because the mean of its divisors is an integer number (13020388868760).

Almost surely, 2^{312213323312212} is an apocalyptic number.

It is an amenable number.

312213323312212 is an abundant number, since it is smaller than the sum of its proper divisors (312765342388268).

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

312213323312212 is a wasteful number, since it uses less digits than its factorization.

312213323312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232960 (or 232958 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

Adding to 312213323312212 its reverse (212213323312213), we get a palindrome (524426646624425).

Subtracting from 312213323312212 its reverse (212213323312213), we obtain a palindrome (99999999999999).

The spelling of 312213323312212 in words is "three hundred twelve trillion, two hundred thirteen billion, three hundred twenty-three million, three hundred twelve thousand, two hundred twelve".