2244316521 has 4 divisors (see below), whose sum is σ = 2992422032. Its totient is φ = 1496211012.

The previous prime is 2244316513. The next prime is 2244316553. The reversal of 2244316521 is 1256134422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2244316521 - 2³ = 2244316513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2244316721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374052751 + ... + 374052756.

It is an arithmetic number, because the mean of its divisors is an integer number (748105508).

Almost surely, 2^2244316521 is an apocalyptic number.

It is an amenable number.

2244316521 is a deficient number, since it is larger than the sum of its proper divisors (748105511).

2244316521 is an equidigital number, since it uses as much as digits as its factorization.

2244316521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748105510.

The product of its digits is 11520, while the sum is 30.

The square root of 2244316521 is about 47374.2178932803. The cubic root of 2244316521 is about 1309.2664387495.

The spelling of 2244316521 in words is "two billion, two hundred forty-four million, three hundred sixteen thousand, five hundred twenty-one".