2112021312300 has 216 divisors, whose sum is σ = 6643880181120. Its totient is φ = 561178368000.

The previous prime is 2112021312287. The next prime is 2112021312301. The reversal of 2112021312300 is 32131202112.

2112021312300 is a `hidden beast` number, since 2 + 11 + 20 + 21 + 312 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2112021312301) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 420467589 + ... + 420472611.

Almost surely, 2^{2112021312300} is an apocalyptic number.

2112021312300 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 2112021312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3321940090560).

2112021312300 is an abundant number, since it is smaller than the sum of its proper divisors (4531858868820).

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

2112021312300 is a wasteful number, since it uses less digits than its factorization.

2112021312300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633 (or 6623 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2112021312300 its reverse (32131202112), we get a palindrome (2144152514412).

The spelling of 2112021312300 in words is "two trillion, one hundred twelve billion, twenty-one million, three hundred twelve thousand, three hundred".