2021021233 has 32 divisors (see below), whose sum is σ = 2554675200. Its totient is φ = 1553136000.

The previous prime is 2021021207. The next prime is 2021021237. The reversal of 2021021233 is 3321201202.

It is not a de Polignac number, because 2021021233 - 2⁹ = 2021020721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021021237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1926093 + ... + 1927141.

It is an arithmetic number, because the mean of its divisors is an integer number (79833600).

Almost surely, 2^2021021233 is an apocalyptic number.

It is an amenable number.

2021021233 is a deficient number, since it is larger than the sum of its proper divisors (533653967).

2021021233 is a wasteful number, since it uses less digits than its factorization.

2021021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2021021233 is about 44955.7697409354. The cubic root of 2021021233 is about 1264.3198566382.

Adding to 2021021233 its reverse (3321201202), we get a palindrome (5342222435).

The spelling of 2021021233 in words is "two billion, twenty-one million, twenty-one thousand, two hundred thirty-three".