312111010212 has 24 divisors (see below), whose sum is σ = 753371404800. Its totient is φ = 100449520416.

The previous prime is 312111010147. The next prime is 312111010231. The reversal of 312111010212 is 212010111213.

It is a junction number, because it is equal to n+sod(n) for n = 312111010191 and 312111010200.

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, 448435012 + ... + 448435707.

It is an arithmetic number, because the mean of its divisors is an integer number (31390475200).

Almost surely, 2^312111010212 is an apocalyptic number.

It is an amenable number.

312111010212 is an abundant number, since it is smaller than the sum of its proper divisors (441260394588).

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

312111010212 is a wasteful number, since it uses less digits than its factorization.

312111010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896870755 (or 896870753 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 312111010212 its reverse (212010111213), we get a palindrome (524121121425).

The spelling of 312111010212 in words is "three hundred twelve billion, one hundred eleven million, ten thousand, two hundred twelve".