122520224 has 24 divisors (see below), whose sum is σ = 255401748. Its totient is φ = 57656320.

The previous prime is 122520193. The next prime is 122520247. The reversal of 122520224 is 422025221.

It can be written as a sum of positive squares in 2 ways, for example, as 122500624 + 19600 = 11068^2 + 140^2 .

It is a super-2 number, since 2×122520224² = 30022410578020352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122520196 and 122520205.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 112067 + ... + 113154.

Almost surely, 2^122520224 is an apocalyptic number.

It is an amenable number.

122520224 is an abundant number, since it is smaller than the sum of its proper divisors (132881524).

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

122520224 is a wasteful number, since it uses less digits than its factorization.

122520224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225248 (or 225240 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 122520224 is about 11068.8854000753. The cubic root of 122520224 is about 496.6715236576.

Adding to 122520224 its reverse (422025221), we get a palindrome (544545445).

The spelling of 122520224 in words is "one hundred twenty-two million, five hundred twenty thousand, two hundred twenty-four".