333220231021 has 4 divisors (see below), whose sum is σ = 333265310812. Its totient is φ = 333175151232.

The previous prime is 333220231007. The next prime is 333220231031. The reversal of 333220231021 is 120132022333.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138376560100 + 194843670921 = 371990^2 + 441411^2 .

It is a cyclic number.

It is not a de Polignac number, because 333220231021 - 2⁵ = 333220230989 is a prime.

It is a super-2 number, since 2×333220231021² (a number of 24 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 = 333220230983 and 333220231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333220231031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22528806 + ... + 22543591.

It is an arithmetic number, because the mean of its divisors is an integer number (83316327703).

Almost surely, 2^333220231021 is an apocalyptic number.

It is an amenable number.

333220231021 is a deficient number, since it is larger than the sum of its proper divisors (45079791).

333220231021 is an equidigital number, since it uses as much as digits as its factorization.

333220231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45079790.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 333220231021 its reverse (120132022333), we get a palindrome (453352253354).

The spelling of 333220231021 in words is "three hundred thirty-three billion, two hundred twenty million, two hundred thirty-one thousand, twenty-one".