221033233313 has 4 divisors (see below), whose sum is σ = 221543703108. Its totient is φ = 220522763520.

The previous prime is 221033233259. The next prime is 221033233339. The reversal of 221033233313 is 313332330122.

It is a happy number.

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 75378800704 + 145654432609 = 274552^2 + 381647^2 .

It is a cyclic number.

It is not a de Polignac number, because 221033233313 - 2¹² = 221033229217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221030233313) 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, 255234248 + ... + 255235113.

It is an arithmetic number, because the mean of its divisors is an integer number (55385925777).

Almost surely, 2^221033233313 is an apocalyptic number.

It is an amenable number.

221033233313 is a deficient number, since it is larger than the sum of its proper divisors (510469795).

221033233313 is an equidigital number, since it uses as much as digits as its factorization.

221033233313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510469794.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 221033233313 its reverse (313332330122), we get a palindrome (534365563435).

The spelling of 221033233313 in words is "two hundred twenty-one billion, thirty-three million, two hundred thirty-three thousand, three hundred thirteen".