2444224221 has 8 divisors (see below), whose sum is σ = 3621072960. Its totient is φ = 1629482796.

The previous prime is 2444224207. The next prime is 2444224229. The reversal of 2444224221 is 1224224442.

It is not a de Polignac number, because 2444224221 - 2⁶ = 2444224157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 90526823 = 2444224221 / (2 + 4 + 4 + 4 + 2 + 2 + 4 + 2 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2444224229) 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, 45263385 + ... + 45263438.

It is an arithmetic number, because the mean of its divisors is an integer number (452634120).

Almost surely, 2^2444224221 is an apocalyptic number.

It is an amenable number.

2444224221 is a deficient number, since it is larger than the sum of its proper divisors (1176848739).

2444224221 is an equidigital number, since it uses as much as digits as its factorization.

2444224221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90526832 (or 90526826 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 2444224221 is about 49439.0960779017. The cubic root of 2444224221 is about 1347.0395522138.

Adding to 2444224221 its reverse (1224224442), we get a palindrome (3668448663).

The spelling of 2444224221 in words is "two billion, four hundred forty-four million, two hundred twenty-four thousand, two hundred twenty-one".