33230321021 has 8 divisors (see below), whose sum is σ = 34237757304. Its totient is φ = 32237809920.

The previous prime is 33230320999. The next prime is 33230321051. The reversal of 33230321021 is 12012303233.

It can be written as a sum of positive squares in 4 ways, for example, as 7466860921 + 25763460100 = 86411^2 + 160510^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33230321021 - 2⁶ = 33230320957 is a prime.

It is a super-2 number, since 2×33230321021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33230320984 and 33230321002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33230321051) 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, 3726776 + ... + 3735681.

It is an arithmetic number, because the mean of its divisors is an integer number (4279719663).

Almost surely, 2^33230321021 is an apocalyptic number.

It is an amenable number.

33230321021 is a deficient number, since it is larger than the sum of its proper divisors (1007436283).

33230321021 is an equidigital number, since it uses as much as digits as its factorization.

33230321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462591.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33230321021 its reverse (12012303233), we get a palindrome (45242624254).

The spelling of 33230321021 in words is "thirty-three billion, two hundred thirty million, three hundred twenty-one thousand, twenty-one".