122421422 has 4 divisors (see below), whose sum is σ = 183632136. Its totient is φ = 61210710.

The previous prime is 122421421. The next prime is 122421443. The reversal of 122421422 is 224124221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224124221 = 787 ⋅284783.

It is a junction number, because it is equal to n+sod(n) for n = 122421394 and 122421403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122421421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30605354 + ... + 30605357.

It is an arithmetic number, because the mean of its divisors is an integer number (45908034).

Almost surely, 2^122421422 is an apocalyptic number.

122421422 is a deficient number, since it is larger than the sum of its proper divisors (61210714).

122421422 is an equidigital number, since it uses as much as digits as its factorization.

122421422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61210713.

The product of its digits is 512, while the sum is 20.

The square root of 122421422 is about 11064.4214489507. The cubic root of 122421422 is about 496.5379801631.

Adding to 122421422 its reverse (224124221), we get a palindrome (346545643).

The spelling of 122421422 in words is "one hundred twenty-two million, four hundred twenty-one thousand, four hundred twenty-two".