220131224 has 8 divisors (see below), whose sum is σ = 412746060. Its totient is φ = 110065608.

The previous prime is 220131211. The next prime is 220131227. The reversal of 220131224 is 422131022.

220131224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131227) 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 as a sum of consecutive naturals, namely, 13758194 + ... + 13758209.

Almost surely, 2^220131224 is an apocalyptic number.

It is an amenable number.

220131224 is a deficient number, since it is larger than the sum of its proper divisors (192614836).

220131224 is a wasteful number, since it uses less digits than its factorization.

220131224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27516409 (or 27516405 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220131224 is about 14836.8198748923. The cubic root of 220131224 is about 603.8010762556.

Adding to 220131224 its reverse (422131022), we get a palindrome (642262246).

The spelling of 220131224 in words is "two hundred twenty million, one hundred thirty-one thousand, two hundred twenty-four".