4221131344 has 10 divisors (see below), whose sum is σ = 8178442010. Its totient is φ = 2110565664.

The previous prime is 4221131339. The next prime is 4221131393. The reversal of 4221131344 is 4431311224.

It can be written as a sum of positive squares in only one way, i.e., 3001724944 + 1219406400 = 54788^2 + 34920^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131910339 + ... + 131910370.

It is an arithmetic number, because the mean of its divisors is an integer number (817844201).

Almost surely, 2^4221131344 is an apocalyptic number.

It is an amenable number.

4221131344 is a deficient number, since it is larger than the sum of its proper divisors (3957310666).

4221131344 is a wasteful number, since it uses less digits than its factorization.

4221131344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263820717 (or 263820711 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 4221131344 is about 64970.2342923281. The cubic root of 4221131344 is about 1616.1299870115.

Adding to 4221131344 its reverse (4431311224), we get a palindrome (8652442568).

The spelling of 4221131344 in words is "four billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred forty-four".