12223320231 has 16 divisors (see below), whose sum is σ = 16399484928. Its totient is φ = 8098104000.

The previous prime is 12223320227. The next prime is 12223320269. The reversal of 12223320231 is 13202332221.

It is a happy number.

It is not a de Polignac number, because 12223320231 - 2² = 12223320227 is a prime.

It is a super-2 number, since 2×12223320231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12223320198 and 12223320207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223320281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592075 + ... + 612371.

It is an arithmetic number, because the mean of its divisors is an integer number (1024967808).

Almost surely, 2^12223320231 is an apocalyptic number.

12223320231 is a deficient number, since it is larger than the sum of its proper divisors (4176164697).

12223320231 is a wasteful number, since it uses less digits than its factorization.

12223320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21542.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12223320231 its reverse (13202332221), we get a palindrome (25425652452).

The spelling of 12223320231 in words is "twelve billion, two hundred twenty-three million, three hundred twenty thousand, two hundred thirty-one".