424022231 has 2 divisors, whose sum is σ = 424022232. Its totient is φ = 424022230.

The previous prime is 424022219. The next prime is 424022233. The reversal of 424022231 is 132220424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424022231 - 2⁶ = 424022167 is a prime.

It is a super-2 number, since 2×424022231² = 359589704764434722, which contains 22 as substring.

Together with 424022233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424022233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212011115 + 212011116.

It is an arithmetic number, because the mean of its divisors is an integer number (212011116).

Almost surely, 2^424022231 is an apocalyptic number.

424022231 is a deficient number, since it is larger than the sum of its proper divisors (1).

424022231 is an equidigital number, since it uses as much as digits as its factorization.

424022231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 424022231 is about 20591.8000912985. The cubic root of 424022231 is about 751.2702804872.

Adding to 424022231 its reverse (132220424), we get a palindrome (556242655).

The spelling of 424022231 in words is "four hundred twenty-four million, twenty-two thousand, two hundred thirty-one".