242222423 has 2 divisors, whose sum is σ = 242222424. Its totient is φ = 242222422.

The previous prime is 242222419. The next prime is 242222441. The reversal of 242222423 is 324222242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242222423 - 2² = 242222419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242222023) 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, 121111211 + 121111212.

It is an arithmetic number, because the mean of its divisors is an integer number (121111212).

Almost surely, 2^242222423 is an apocalyptic number.

242222423 is a deficient number, since it is larger than the sum of its proper divisors (1).

242222423 is an equidigital number, since it uses as much as digits as its factorization.

242222423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 23.

The square root of 242222423 is about 15563.4964901850. The cubic root of 242222423 is about 623.3588285555.

Adding to 242222423 its reverse (324222242), we get a palindrome (566444665).

The spelling of 242222423 in words is "two hundred forty-two million, two hundred twenty-two thousand, four hundred twenty-three".