1200000200 has 72 divisors (see below), whose sum is σ = 3245537250. Its totient is φ = 411425280.

The previous prime is 1200000163. The next prime is 1200000203. The reversal of 1200000200 is 20000021.

It can be written as a sum of positive squares in 3 ways, for example, as 534256996 + 665743204 = 23114^2 + 25802^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (1200000203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51425 + ... + 71024.

Almost surely, 2^1200000200 is an apocalyptic number.

1200000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200000200 is an abundant number, since it is smaller than the sum of its proper divisors (2045537050).

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

1200000200 is a wasteful number, since it uses less digits than its factorization.

1200000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122479 (or 122463 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 1200000200 is about 34641.0190381288. The cubic root of 1200000200 is about 1062.6586282192.

Adding to 1200000200 its reverse (20000021), we get a palindrome (1220000221).

The spelling of 1200000200 in words is "one billion, two hundred million, two hundred", and thus it is an aban number.