22223123231 has 8 divisors (see below), whose sum is σ = 23570462160. Its totient is φ = 20880239488.

The previous prime is 22223123213. The next prime is 22223123239. The reversal of 22223123231 is 13232132222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22223123231 is a prime.

It is a super-2 number, since 2×22223123231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22223123197 and 22223123206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223123239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103516 + ... + 1123473.

It is an arithmetic number, because the mean of its divisors is an integer number (2946307770).

Almost surely, 2^22223123231 is an apocalyptic number.

22223123231 is a deficient number, since it is larger than the sum of its proper divisors (1347338929).

22223123231 is a wasteful number, since it uses less digits than its factorization.

22223123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227593.

The product of its digits is 1728, while the sum is 23.

Adding to 22223123231 its reverse (13232132222), we get a palindrome (35455255453).

The spelling of 22223123231 in words is "twenty-two billion, two hundred twenty-three million, one hundred twenty-three thousand, two hundred thirty-one".