200012120 has 96 divisors (see below), whose sum is σ = 571153680. Its totient is φ = 62334720.

The previous prime is 200012083. The next prime is 200012129. The reversal of 200012120 is 21210002.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 200012098 and 200012107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16922 + ... + 26198.

Almost surely, 2^200012120 is an apocalyptic number.

200012120 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 200012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285576840).

200012120 is an abundant number, since it is smaller than the sum of its proper divisors (371141560).

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

200012120 is a wasteful number, since it uses less digits than its factorization.

200012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313 (or 9302 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 200012120 is about 14142.5641239487. The cubic root of 200012120 is about 584.8153604356.

Adding to 200012120 its reverse (21210002), we get a palindrome (221222122).

The spelling of 200012120 in words is "two hundred million, twelve thousand, one hundred twenty".