120531224 has 128 divisors (see below), whose sum is σ = 283668480. Its totient is φ = 47308800.

The previous prime is 120531223. The next prime is 120531227. The reversal of 120531224 is 422135021.

120531224 is nontrivially palindromic in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 120531196 and 120531205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120531223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1066592 + ... + 1066704.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^120531224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120531224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141834240).

120531224 is an abundant number, since it is smaller than the sum of its proper divisors (163137256).

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

120531224 is a wasteful number, since it uses less digits than its factorization.

120531224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 120531224 is about 10978.6713221592. The cubic root of 120531224 is about 493.9691829520.

Adding to 120531224 its reverse (422135021), we get a palindrome (542666245).

The spelling of 120531224 in words is "one hundred twenty million, five hundred thirty-one thousand, two hundred twenty-four".