2021001200 has 30 divisors (see below), whose sum is σ = 4855456344. Its totient is φ = 808400320.

The previous prime is 2021001193. The next prime is 2021001221. The reversal of 2021001200 is 21001202.

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

It is a congruent number.

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, 2525852 + ... + 2526651.

Almost surely, 2^2021001200 is an apocalyptic number.

2021001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021001200 is an abundant number, since it is smaller than the sum of its proper divisors (2834455144).

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

2021001200 is a wasteful number, since it uses less digits than its factorization.

2021001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052521 (or 5052510 counting only the distinct ones).

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

The square root of 2021001200 is about 44955.5469324977. The cubic root of 2021001200 is about 1264.3156791787.

Adding to 2021001200 its reverse (21001202), we get a palindrome (2042002402).

The spelling of 2021001200 in words is "two billion, twenty-one million, one thousand, two hundred".