122424220 has 24 divisors (see below), whose sum is σ = 270622800. Its totient is φ = 46392192.

The previous prime is 122424199. The next prime is 122424241. The reversal of 122424220 is 22424221.

It is an interprime number because it is at equal distance from previous prime (122424199) and next prime (122424241).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160705 + ... + 161464.

It is an arithmetic number, because the mean of its divisors is an integer number (11275950).

Almost surely, 2^122424220 is an apocalyptic number.

122424220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122424220 is an abundant number, since it is smaller than the sum of its proper divisors (148198580).

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

122424220 is a wasteful number, since it uses less digits than its factorization.

122424220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322197 (or 322195 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 122424220 is about 11064.5478895434. The cubic root of 122424220 is about 496.5417630050.

Adding to 122424220 its reverse (22424221), we get a palindrome (144848441).

Subtracting from 122424220 its reverse (22424221), we obtain a palindrome (99999999).

The spelling of 122424220 in words is "one hundred twenty-two million, four hundred twenty-four thousand, two hundred twenty".