124330221 has 28 divisors (see below), whose sum is σ = 192870780. Its totient is φ = 80015040.

The previous prime is 124330211. The next prime is 124330247. The reversal of 124330221 is 122033421.

124330221 is a `hidden beast` number, since 12 + 433 + 0 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85766121 + 38564100 = 9261^2 + 6210^2 .

It is not a de Polignac number, because 124330221 - 2¹⁰ = 124329197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124330194 and 124330203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124330201) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 18201 + ... + 24081.

Almost surely, 2^124330221 is an apocalyptic number.

It is an amenable number.

124330221 is a deficient number, since it is larger than the sum of its proper divisors (68540559).

124330221 is an frugal number, since it uses more digits than its factorization.

124330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928 (or 5913 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 124330221 is about 11150.3462278084. The cubic root of 124330221 is about 499.1053615321.

Adding to 124330221 its reverse (122033421), we get a palindrome (246363642).

The spelling of 124330221 in words is "one hundred twenty-four million, three hundred thirty thousand, two hundred twenty-one".