2021012211200 has 60 divisors (see below), whose sum is σ = 5007215676540. Its totient is φ = 808404879360.

The previous prime is 2021012211149. The next prime is 2021012211217. The reversal of 2021012211200 is 21122101202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78932990 + ... + 78958589.

It is an arithmetic number, because the mean of its divisors is an integer number (83453594609).

Almost surely, 2^{2021012211200} is an apocalyptic number.

2021012211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021012211200 is an abundant number, since it is smaller than the sum of its proper divisors (2986203465340).

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

2021012211200 is an equidigital number, since it uses as much as digits as its factorization.

2021012211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157891607 (or 157891586 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2021012211200 its reverse (21122101202), we get a palindrome (2042134312402).

The spelling of 2021012211200 in words is "two trillion, twenty-one billion, twelve million, two hundred eleven thousand, two hundred".