24142221 has 12 divisors (see below), whose sum is σ = 35683648. Its totient is φ = 15720264.

The previous prime is 24142219. The next prime is 24142231. The reversal of 24142221 is 12224142.

24142221 is a `hidden beast` number, since 241 + 422 + 2 + 1 = 666.

It is not a de Polignac number, because 24142221 - 2¹ = 24142219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24142194 and 24142203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24142231) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 30805 + ... + 31578.

Almost surely, 2^24142221 is an apocalyptic number.

It is an amenable number.

24142221 is a deficient number, since it is larger than the sum of its proper divisors (11541427).

24142221 is a wasteful number, since it uses less digits than its factorization.

24142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62432 (or 62429 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 24142221 is about 4913.4734150090. The cubic root of 24142221 is about 289.0185649963.

Adding to 24142221 its reverse (12224142), we get a palindrome (36366363).

The spelling of 24142221 in words is "twenty-four million, one hundred forty-two thousand, two hundred twenty-one".