2021110221200 has 60 divisors (see below), whose sum is σ = 5549391215040. Its totient is φ = 692952074880.

The previous prime is 2021110221191. The next prime is 2021110221203. The reversal of 2021110221200 is 21220111202.

It is a super-2 number, since 2×2021110221200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2021110221203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 360909740 + ... + 360915339.

It is an arithmetic number, because the mean of its divisors is an integer number (92489853584).

Almost surely, 2^{2021110221200} is an apocalyptic number.

2021110221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021110221200 is an abundant number, since it is smaller than the sum of its proper divisors (3528280993840).

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

2021110221200 is a wasteful number, since it uses less digits than its factorization.

2021110221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721825104 (or 721825093 counting only the distinct ones).

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

Adding to 2021110221200 its reverse (21220111202), we get a palindrome (2042330332402).

The spelling of 2021110221200 in words is "two trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, two hundred".