122221423 has 2 divisors, whose sum is σ = 122221424. Its totient is φ = 122221422.

The previous prime is 122221417. The next prime is 122221427. The reversal of 122221423 is 324122221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122221423 - 2⁹ = 122220911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122221423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122221427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110711 + 61110712.

It is an arithmetic number, because the mean of its divisors is an integer number (61110712).

Almost surely, 2^122221423 is an apocalyptic number.

122221423 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221423 is an equidigital number, since it uses as much as digits as its factorization.

122221423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 19.

The square root of 122221423 is about 11055.3798216072. The cubic root of 122221423 is about 496.2674359339.

Adding to 122221423 its reverse (324122221), we get a palindrome (446343644).

The spelling of 122221423 in words is "one hundred twenty-two million, two hundred twenty-one thousand, four hundred twenty-three".