2112251202340 has 24 divisors (see below), whose sum is σ = 4435755226560. Its totient is φ = 844895204448.

The previous prime is 2112251202317. The next prime is 2112251202343. The reversal of 2112251202340 is 432021522112.

It is not an unprimeable number, because it can be changed into a prime (2112251202343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5281459 + ... + 5667301.

It is an arithmetic number, because the mean of its divisors is an integer number (184823134440).

Almost surely, 2^{2112251202340} is an apocalyptic number.

2112251202340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112251202340 is an abundant number, since it is smaller than the sum of its proper divisors (2323504024220).

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

2112251202340 is a wasteful number, since it uses less digits than its factorization.

2112251202340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659571 (or 659569 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2112251202340 its reverse (432021522112), we get a palindrome (2544272724452).

The spelling of 2112251202340 in words is "two trillion, one hundred twelve billion, two hundred fifty-one million, two hundred two thousand, three hundred forty".