2021001133 has 4 divisors (see below), whose sum is σ = 2031260220. Its totient is φ = 2010742048.

The previous prime is 2021001119. The next prime is 2021001149. The reversal of 2021001133 is 3311001202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1698511369 + 322489764 = 41213^2 + 17958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021001133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021001173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5129248 + ... + 5129641.

It is an arithmetic number, because the mean of its divisors is an integer number (507815055).

Almost surely, 2^2021001133 is an apocalyptic number.

It is an amenable number.

2021001133 is a deficient number, since it is larger than the sum of its proper divisors (10259087).

2021001133 is a wasteful number, since it uses less digits than its factorization.

2021001133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10259086.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2021001133 is about 44955.5461873171. The cubic root of 2021001133 is about 1264.3156652072.

Adding to 2021001133 its reverse (3311001202), we get a palindrome (5332002335).

The spelling of 2021001133 in words is "two billion, twenty-one million, one thousand, one hundred thirty-three".