2133021021 has 8 divisors (see below), whose sum is σ = 2942098080. Its totient is φ = 1372978992.

The previous prime is 2133020969. The next prime is 2133021031. The reversal of 2133021021 is 1201203312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2133021021 - 2¹⁰ = 2133019997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133021031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12258655 + ... + 12258828.

It is an arithmetic number, because the mean of its divisors is an integer number (367762260).

Almost surely, 2^2133021021 is an apocalyptic number.

It is an amenable number.

2133021021 is a deficient number, since it is larger than the sum of its proper divisors (809077059).

2133021021 is a wasteful number, since it uses less digits than its factorization.

2133021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24517515.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2133021021 is about 46184.6405312416. The cubic root of 2133021021 is about 1287.2563567745.

Adding to 2133021021 its reverse (1201203312), we get a palindrome (3334224333).

The spelling of 2133021021 in words is "two billion, one hundred thirty-three million, twenty-one thousand, twenty-one".