2112312228 has 24 divisors (see below), whose sum is σ = 5307861888. Its totient is φ = 649942176.

The previous prime is 2112312197. The next prime is 2112312229. The reversal of 2112312228 is 8222132112.

It is a junction number, because it is equal to n+sod(n) for n = 2112312198 and 2112312207.

It is not an unprimeable number, because it can be changed into a prime (2112312229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6770076 + ... + 6770387.

It is an arithmetic number, because the mean of its divisors is an integer number (221160912).

Almost surely, 2^2112312228 is an apocalyptic number.

It is an amenable number.

2112312228 is an abundant number, since it is smaller than the sum of its proper divisors (3195549660).

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

2112312228 is a wasteful number, since it uses less digits than its factorization.

2112312228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13540483 (or 13540481 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 2112312228 is about 45959.8980416624. The cubic root of 2112312228 is about 1283.0769537585.

It can be divided in two parts, 2112312 and 228, that added together give a triangular number (2112540 = T₂₀₅₅).

The spelling of 2112312228 in words is "two billion, one hundred twelve million, three hundred twelve thousand, two hundred twenty-eight".