2000021200 has 60 divisors (see below), whose sum is σ = 4810504608. Its totient is φ = 799100800.

The previous prime is 2000021167. The next prime is 2000021207. The reversal of 2000021200 is 21200002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000021207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434109 + ... + 438691.

Almost surely, 2^2000021200 is an apocalyptic number.

2000021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000021200 is an abundant number, since it is smaller than the sum of its proper divisors (2810483408).

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

2000021200 is a wasteful number, since it uses less digits than its factorization.

2000021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692 (or 5681 counting only the distinct ones).

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

The square root of 2000021200 is about 44721.5965725733. The cubic root of 2000021200 is about 1259.9255016002.

Adding to 2000021200 its reverse (21200002), we get a palindrome (2021221202).

The spelling of 2000021200 in words is "two billion, twenty-one thousand, two hundred".