221013303121 has 8 divisors (see below), whose sum is σ = 245692208384. Its totient is φ = 197431238160.

The previous prime is 221013303089. The next prime is 221013303169. The reversal of 221013303121 is 121303310122.

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

It is not a de Polignac number, because 221013303121 - 2⁵ = 221013303089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221013303421) 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 7 ways as a sum of consecutive naturals, for example, 274209651 + ... + 274210456.

It is an arithmetic number, because the mean of its divisors is an integer number (30711526048).

Almost surely, 2^221013303121 is an apocalyptic number.

It is an amenable number.

221013303121 is a deficient number, since it is larger than the sum of its proper divisors (24678905263).

221013303121 is a wasteful number, since it uses less digits than its factorization.

221013303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548420151.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221013303121 its reverse (121303310122), we get a palindrome (342316613243).

The spelling of 221013303121 in words is "two hundred twenty-one billion, thirteen million, three hundred three thousand, one hundred twenty-one".