2021100212000 has 96 divisors (see below), whose sum is σ = 4972462919424. Its totient is φ = 807362400000.

The previous prime is 2021100211969. The next prime is 2021100212071. The reversal of 2021100212000 is 2120011202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667599 + ... + 3340401.

It is an arithmetic number, because the mean of its divisors is an integer number (51796488744).

Almost surely, 2^{2021100212000} is an apocalyptic number.

2021100212000 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 2021100212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2486231459712).

2021100212000 is an abundant number, since it is smaller than the sum of its proper divisors (2951362707424).

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

2021100212000 is an equidigital number, since it uses as much as digits as its factorization.

2021100212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673579 (or 673561 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021100212000 its reverse (2120011202), we get a palindrome (2023220223202).

The spelling of 2021100212000 in words is "two trillion, twenty-one billion, one hundred million, two hundred twelve thousand".