2112302223240 has 128 divisors (see below), whose sum is σ = 6919149772800. Its totient is φ = 511616920320.

The previous prime is 2112302223203. The next prime is 2112302223247. The reversal of 2112302223240 is 423222032112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2112302223240.

It is not an unprimeable number, because it can be changed into a prime (2112302223247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 769881 + ... + 2194839.

It is an arithmetic number, because the mean of its divisors is an integer number (54055857600).

Almost surely, 2^{2112302223240} is an apocalyptic number.

2112302223240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112302223240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3459574886400).

2112302223240 is an abundant number, since it is smaller than the sum of its proper divisors (4806847549560).

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

2112302223240 is a wasteful number, since it uses less digits than its factorization.

2112302223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426107 (or 1426103 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2112302223240 its reverse (423222032112), we get a palindrome (2535524255352).

The spelling of 2112302223240 in words is "two trillion, one hundred twelve billion, three hundred two million, two hundred twenty-three thousand, two hundred forty".