2021133300 has 72 divisors (see below), whose sum is σ = 5983846176. Its totient is φ = 526431360.

The previous prime is 2021133299. The next prime is 2021133347. The reversal of 2021133300 is 33311202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2021133300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65439 + ... + 91238.

Almost surely, 2^2021133300 is an apocalyptic number.

2021133300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021133300 is an abundant number, since it is smaller than the sum of its proper divisors (3962712876).

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

2021133300 is a wasteful number, since it uses less digits than its factorization.

2021133300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156737 (or 156730 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2021133300 is about 44957.0161376397. The cubic root of 2021133300 is about 1264.3432253379.

Adding to 2021133300 its reverse (33311202), we get a palindrome (2054444502).

The spelling of 2021133300 in words is "two billion, twenty-one million, one hundred thirty-three thousand, three hundred".