122221424 has 20 divisors (see below), whose sum is σ = 255020136. Its totient is φ = 56409792.

The previous prime is 122221423. The next prime is 122221427. The reversal of 122221424 is 424122221.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 122221396 and 122221405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293594 + ... + 294009.

Almost surely, 2^122221424 is an apocalyptic number.

It is an amenable number.

122221424 is an abundant number, since it is smaller than the sum of its proper divisors (132798712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122221424 is a wasteful number, since it uses less digits than its factorization.

122221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587624 (or 587618 counting only the distinct ones).

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

The square root of 122221424 is about 11055.3798668341. The cubic root of 122221424 is about 496.2674372874.

Adding to 122221424 its reverse (424122221), we get a palindrome (546343645).

The spelling of 122221424 in words is "one hundred twenty-two million, two hundred twenty-one thousand, four hundred twenty-four".