2021122133 has 4 divisors (see below), whose sum is σ = 2035662720. Its totient is φ = 2006581548.

The previous prime is 2021122121. The next prime is 2021122141. The reversal of 2021122133 is 3312211202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021122133 - 2¹² = 2021118037 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 (2021142133) 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, 7270085 + ... + 7270362.

It is an arithmetic number, because the mean of its divisors is an integer number (508915680).

Almost surely, 2^2021122133 is an apocalyptic number.

It is an amenable number.

2021122133 is a deficient number, since it is larger than the sum of its proper divisors (14540587).

2021122133 is a wasteful number, since it uses less digits than its factorization.

2021122133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14540586.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2021122133 is about 44956.8919410584. The cubic root of 2021122133 is about 1264.3408967851.

Adding to 2021122133 its reverse (3312211202), we get a palindrome (5333333335).

The spelling of 2021122133 in words is "two billion, twenty-one million, one hundred twenty-two thousand, one hundred thirty-three".