122222423 has 4 divisors (see below), whose sum is σ = 123432648. Its totient is φ = 121012200.

The previous prime is 122222413. The next prime is 122222447. The reversal of 122222423 is 324222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324222221 = 101 ⋅3210121.

It is a cyclic number.

It is not a de Polignac number, because 122222423 - 2⁴ = 122222407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122222395 and 122222404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222413) 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 in 3 ways as a sum of consecutive naturals, for example, 604961 + ... + 605162.

It is an arithmetic number, because the mean of its divisors is an integer number (30858162).

Almost surely, 2^122222423 is an apocalyptic number.

122222423 is a deficient number, since it is larger than the sum of its proper divisors (1210225).

122222423 is a wasteful number, since it uses less digits than its factorization.

122222423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210224.

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

The square root of 122222423 is about 11055.4250483643. The cubic root of 122222423 is about 496.2687893957.

Adding to 122222423 its reverse (324222221), we get a palindrome (446444644).

The spelling of 122222423 in words is "one hundred twenty-two million, two hundred twenty-two thousand, four hundred twenty-three".