2021010800 has 30 divisors (see below), whose sum is σ = 4855479408. Its totient is φ = 808404160.

The previous prime is 2021010799. The next prime is 2021010809. The reversal of 2021010800 is 80101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021010809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2525864 + ... + 2526663.

Almost surely, 2^2021010800 is an apocalyptic number.

2021010800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021010800 is an abundant number, since it is smaller than the sum of its proper divisors (2834468608).

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

2021010800 is a wasteful number, since it uses less digits than its factorization.

2021010800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052545 (or 5052534 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2021010800 is about 44955.6537045120. The cubic root of 2021010800 is about 1264.3176810596.

The spelling of 2021010800 in words is "two billion, twenty-one million, ten thousand, eight hundred".