221012301022321 has 4 divisors (see below), whose sum is σ = 221012364934144. Its totient is φ = 221012237110500.

The previous prime is 221012301022297. The next prime is 221012301022327. The reversal of 221012301022321 is 123220103210122.

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 221012301022321 - 2⁴⁵ = 185827928933489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221012301022292 and 221012301022301.

It is not an unprimeable number, because it can be changed into a prime (221012301022327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26452905 + ... + 33790246.

It is an arithmetic number, because the mean of its divisors is an integer number (55253091233536).

Almost surely, 2^{221012301022321} is an apocalyptic number.

It is an amenable number.

221012301022321 is a deficient number, since it is larger than the sum of its proper divisors (63911823).

221012301022321 is an equidigital number, since it uses as much as digits as its factorization.

221012301022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63911822.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221012301022321 its reverse (123220103210122), we get a palindrome (344232404232443).

The spelling of 221012301022321 in words is "two hundred twenty-one trillion, twelve billion, three hundred one million, twenty-two thousand, three hundred twenty-one".