2112023022312 has 128 divisors (see below), whose sum is σ = 6088914374400. Its totient is φ = 597980909568.

The previous prime is 2112023022289. The next prime is 2112023022331. The reversal of 2112023022312 is 2132203202112.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179146114 + ... + 179157902.

It is an arithmetic number, because the mean of its divisors is an integer number (47569643550).

Almost surely, 2^{2112023022312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112023022312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3044457187200).

2112023022312 is an abundant number, since it is smaller than the sum of its proper divisors (3976891352088).

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

2112023022312 is a wasteful number, since it uses less digits than its factorization.

2112023022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355 (or 21351 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2112023022312 its reverse (2132203202112), we get a palindrome (4244226224424).

The spelling of 2112023022312 in words is "two trillion, one hundred twelve billion, twenty-three million, twenty-two thousand, three hundred twelve".