221130223227 has 24 divisors (see below), whose sum is σ = 319879887600. Its totient is φ = 147203578368.

The previous prime is 221130223207. The next prime is 221130223229. The reversal of 221130223227 is 722322031122.

221130223227 is a `hidden beast` number, since 2 + 211 + 3 + 0 + 223 + 227 = 666.

It is not a de Polignac number, because 221130223227 - 2⁷ = 221130223099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221130223227.

It is not an unprimeable number, because it can be changed into a prime (221130223229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24777588 + ... + 24786510.

It is an arithmetic number, because the mean of its divisors is an integer number (13328328650).

Almost surely, 2^221130223227 is an apocalyptic number.

221130223227 is a deficient number, since it is larger than the sum of its proper divisors (98749664373).

221130223227 is a wasteful number, since it uses less digits than its factorization.

221130223227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12667 (or 12664 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 221130223227 its reverse (722322031122), we get a palindrome (943452254349).

The spelling of 221130223227 in words is "two hundred twenty-one billion, one hundred thirty million, two hundred twenty-three thousand, two hundred twenty-seven".