2133223021 has 8 divisors (see below), whose sum is σ = 2233900224. Its totient is φ = 2033206560.

The previous prime is 2133223007. The next prime is 2133223031. The reversal of 2133223021 is 1203223312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2133223021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2133223021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133223031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158571 + ... + 171496.

It is an arithmetic number, because the mean of its divisors is an integer number (279237528).

Almost surely, 2^2133223021 is an apocalyptic number.

It is an amenable number.

2133223021 is a deficient number, since it is larger than the sum of its proper divisors (100677203).

2133223021 is a wasteful number, since it uses less digits than its factorization.

2133223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330371.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2133223021 is about 46186.8273536947. The cubic root of 2133223021 is about 1287.2969904695.

Adding to 2133223021 its reverse (1203223312), we get a palindrome (3336446333).

The spelling of 2133223021 in words is "two billion, one hundred thirty-three million, two hundred twenty-three thousand, twenty-one".