122223421 has 8 divisors (see below), whose sum is σ = 133588224. Its totient is φ = 111322560.

The previous prime is 122223347. The next prime is 122223427. The reversal of 122223421 is 124322221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122223421 - 2⁷ = 122223293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122223427) 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 7 ways as a sum of consecutive naturals, for example, 115435 + ... + 116488.

It is an arithmetic number, because the mean of its divisors is an integer number (16698528).

Almost surely, 2^122223421 is an apocalyptic number.

It is an amenable number.

122223421 is a deficient number, since it is larger than the sum of its proper divisors (11364803).

122223421 is a wasteful number, since it uses less digits than its factorization.

122223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231971.

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

The square root of 122223421 is about 11055.4701844833. The cubic root of 122223421 is about 496.2701401433.

Adding to 122223421 its reverse (124322221), we get a palindrome (246545642).

The spelling of 122223421 in words is "one hundred twenty-two million, two hundred twenty-three thousand, four hundred twenty-one".