200121300 has 288 divisors, whose sum is σ = 699955200. Its totient is φ = 48885120.

The previous prime is 200121247. The next prime is 200121329. The reversal of 200121300 is 3121002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2411059 + ... + 2411141.

It is an arithmetic number, because the mean of its divisors is an integer number (2430400).

Almost surely, 2^200121300 is an apocalyptic number.

200121300 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 200121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349977600).

200121300 is an abundant number, since it is smaller than the sum of its proper divisors (499833900).

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

200121300 is a wasteful number, since it uses less digits than its factorization.

200121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 200121300 is about 14146.4235762966. The cubic root of 200121300 is about 584.9217515328.

Adding to 200121300 its reverse (3121002), we get a palindrome (203242302).

It can be divided in two parts, 20012 and 1300, that added together give a palindrome (21312).

The spelling of 200121300 in words is "two hundred million, one hundred twenty-one thousand, three hundred".