231222067 has 2 divisors, whose sum is σ = 231222068. Its totient is φ = 231222066.

The previous prime is 231222053. The next prime is 231222091. The reversal of 231222067 is 760222132.

231222067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231222067 - 2¹¹ = 231220019 is a prime.

It is not a weakly prime, because it can be changed into another prime (231222097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115611033 + 115611034.

It is an arithmetic number, because the mean of its divisors is an integer number (115611034).

Almost surely, 2^231222067 is an apocalyptic number.

231222067 is a deficient number, since it is larger than the sum of its proper divisors (1).

231222067 is an equidigital number, since it uses as much as digits as its factorization.

231222067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 231222067 is about 15205.9878666268. The cubic root of 231222067 is about 613.7757981698.

Adding to 231222067 its reverse (760222132), we get a palindrome (991444199).

The spelling of 231222067 in words is "two hundred thirty-one million, two hundred twenty-two thousand, sixty-seven".