212021033300 has 72 divisors (see below), whose sum is σ = 463019661720. Its totient is φ = 84268710400.

The previous prime is 212021033299. The next prime is 212021033317. The reversal of 212021033300 is 3330120212.

It can be written as a sum of positive squares in 12 ways, for example, as 30679624336 + 181341408964 = 175156^2 + 425842^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16167146 + ... + 16180254.

It is an arithmetic number, because the mean of its divisors is an integer number (6430828635).

Almost surely, 2^212021033300 is an apocalyptic number.

212021033300 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 212021033300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231509830860).

212021033300 is an abundant number, since it is smaller than the sum of its proper divisors (250998628420).

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

212021033300 is a wasteful number, since it uses less digits than its factorization.

212021033300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14141 (or 14134 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 212021033300 its reverse (3330120212), we get a palindrome (215351153512).

The spelling of 212021033300 in words is "two hundred twelve billion, twenty-one million, thirty-three thousand, three hundred".