1200020200 has 24 divisors (see below), whose sum is σ = 2790047430. Its totient is φ = 480008000.

The previous prime is 1200020179. The next prime is 1200020219. The reversal of 1200020200 is 20200021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1168682596 + 31337604 = 34186^2 + 5598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2999851 + ... + 3000250.

Almost surely, 2^1200020200 is an apocalyptic number.

1200020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200020200 is an abundant number, since it is smaller than the sum of its proper divisors (1590027230).

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

1200020200 is a wasteful number, since it uses less digits than its factorization.

1200020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000117 (or 6000108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 1200020200 is about 34641.3077120365. The cubic root of 1200020200 is about 1062.6645318445.

Adding to 1200020200 its reverse (20200021), we get a palindrome (1220220221).

The spelling of 1200020200 in words is "one billion, two hundred million, twenty thousand, two hundred".