221133301321 has 4 divisors (see below), whose sum is σ = 221207040000. Its totient is φ = 221059562644.

The previous prime is 221133301313. The next prime is 221133301339. The reversal of 221133301321 is 123103331122.

221133301321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221133301321 - 2³ = 221133301313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221133301292 and 221133301301.

It is not an unprimeable number, because it can be changed into a prime (221133301351) 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 3 ways as a sum of consecutive naturals, for example, 36864841 + ... + 36870838.

It is an arithmetic number, because the mean of its divisors is an integer number (55301760000).

Almost surely, 2^221133301321 is an apocalyptic number.

It is an amenable number.

221133301321 is a deficient number, since it is larger than the sum of its proper divisors (73738679).

221133301321 is an equidigital number, since it uses as much as digits as its factorization.

221133301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73738678.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 221133301321 its reverse (123103331122), we get a palindrome (344236632443).

The spelling of 221133301321 in words is "two hundred twenty-one billion, one hundred thirty-three million, three hundred one thousand, three hundred twenty-one".