2112003021000 has 128 divisors (see below), whose sum is σ = 6654692453760. Its totient is φ = 557624480000.

The previous prime is 2112003020993. The next prime is 2112003021001. The reversal of 2112003021000 is 1203002112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2112003021001) 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, 3182154 + ... + 3788153.

It is an arithmetic number, because the mean of its divisors is an integer number (51989784795).

Almost surely, 2^{2112003021000} is an apocalyptic number.

2112003021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112003021000 is an abundant number, since it is smaller than the sum of its proper divisors (4542689432760).

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

2112003021000 is a wasteful number, since it uses less digits than its factorization.

2112003021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970432 (or 6970418 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2112003021000 its reverse (1203002112), we get a palindrome (2113206023112).

The spelling of 2112003021000 in words is "two trillion, one hundred twelve billion, three million, twenty-one thousand".