2424211221 has 8 divisors (see below), whose sum is σ = 3233198080. Its totient is φ = 1615682592.

The previous prime is 2424211217. The next prime is 2424211243. The reversal of 2424211221 is 1221124242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2424211221 - 2² = 2424211217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2424211021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102016 + ... + 123513.

It is an arithmetic number, because the mean of its divisors is an integer number (404149760).

Almost surely, 2^2424211221 is an apocalyptic number.

It is an amenable number.

2424211221 is a deficient number, since it is larger than the sum of its proper divisors (808986859).

2424211221 is a wasteful number, since it uses less digits than its factorization.

2424211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229115.

The product of its digits is 512, while the sum is 21.

The square root of 2424211221 is about 49236.2795202887. The cubic root of 2424211221 is about 1343.3530087952.

Adding to 2424211221 its reverse (1221124242), we get a palindrome (3645335463).

The spelling of 2424211221 in words is "two billion, four hundred twenty-four million, two hundred eleven thousand, two hundred twenty-one".