222311230331 has 2 divisors, whose sum is σ = 222311230332. Its totient is φ = 222311230330.

The previous prime is 222311230327. The next prime is 222311230333. The reversal of 222311230331 is 133032113222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222311230331 - 2² = 222311230327 is a prime.

It is a super-2 number, since 2×222311230331² (a number of 23 digits) contains 22 as substring.

Together with 222311230333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222311230297 and 222311230306.

It is not a weakly prime, because it can be changed into another prime (222311230333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111155615165 + 111155615166.

It is an arithmetic number, because the mean of its divisors is an integer number (111155615166).

Almost surely, 2^222311230331 is an apocalyptic number.

222311230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

222311230331 is an equidigital number, since it uses as much as digits as its factorization.

222311230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 222311230331 its reverse (133032113222), we get a palindrome (355343343553).

The spelling of 222311230331 in words is "two hundred twenty-two billion, three hundred eleven million, two hundred thirty thousand, three hundred thirty-one".