422333231 has 2 divisors, whose sum is σ = 422333232. Its totient is φ = 422333230.

The previous prime is 422333209. The next prime is 422333287. The reversal of 422333231 is 132333224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422333231 - 2⁶ = 422333167 is a prime.

It is a super-2 number, since 2×422333231² = 356730716013798722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422333197 and 422333206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422333531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211166615 + 211166616.

It is an arithmetic number, because the mean of its divisors is an integer number (211166616).

Almost surely, 2^422333231 is an apocalyptic number.

422333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

422333231 is an equidigital number, since it uses as much as digits as its factorization.

422333231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 23.

The square root of 422333231 is about 20550.7476992931. The cubic root of 422333231 is about 750.2714460405.

Adding to 422333231 its reverse (132333224), we get a palindrome (554666455).

The spelling of 422333231 in words is "four hundred twenty-two million, three hundred thirty-three thousand, two hundred thirty-one".