223221541231 has 4 divisors (see below), whose sum is σ = 240392429032. Its totient is φ = 206050653432.

The previous prime is 223221541157. The next prime is 223221541289. The reversal of 223221541231 is 132145122322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 223221541231 - 2²³ = 223213152623 is a prime.

It is a super-3 number, since 3×223221541231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223221541231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223221541331) 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, 8585443881 + ... + 8585443906.

It is an arithmetic number, because the mean of its divisors is an integer number (60098107258).

Almost surely, 2^223221541231 is an apocalyptic number.

223221541231 is a deficient number, since it is larger than the sum of its proper divisors (17170887801).

223221541231 is a wasteful number, since it uses less digits than its factorization.

223221541231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170887800.

The product of its digits is 5760, while the sum is 28.

Adding to 223221541231 its reverse (132145122322), we get a palindrome (355366663553).

The spelling of 223221541231 in words is "two hundred twenty-three billion, two hundred twenty-one million, five hundred forty-one thousand, two hundred thirty-one".