222323311231 has 16 divisors (see below), whose sum is σ = 255442752000. Its totient is φ = 189544231008.

The previous prime is 222323311193. The next prime is 222323311261. The reversal of 222323311231 is 132113323222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222323311231 is a prime.

It is a super-2 number, since 2×222323311231² (a number of 23 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 = 222323311196 and 222323311205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222323311261) 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, 4604925 + ... + 4652953.

It is an arithmetic number, because the mean of its divisors is an integer number (15965172000).

Almost surely, 2^222323311231 is an apocalyptic number.

222323311231 is a deficient number, since it is larger than the sum of its proper divisors (33119440769).

222323311231 is a wasteful number, since it uses less digits than its factorization.

222323311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51558.

The product of its digits is 2592, while the sum is 25.

Adding to 222323311231 its reverse (132113323222), we get a palindrome (354436634453).

The spelling of 222323311231 in words is "two hundred twenty-two billion, three hundred twenty-three million, three hundred eleven thousand, two hundred thirty-one".