4221131144 has 16 divisors (see below), whose sum is σ = 8380187100. Its totient is φ = 1986414592.

The previous prime is 4221131141. The next prime is 4221131153. The reversal of 4221131144 is 4411311224.

It can be written as a sum of positive squares in 2 ways, for example, as 3536680900 + 684450244 = 59470^2 + 26162^2 .

It is not an unprimeable number, because it can be changed into a prime (4221131141) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 15518729 + ... + 15519000.

Almost surely, 2^4221131144 is an apocalyptic number.

It is an amenable number.

4221131144 is a deficient number, since it is larger than the sum of its proper divisors (4159055956).

4221131144 is a wasteful number, since it uses less digits than its factorization.

4221131144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31037752 (or 31037748 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 4221131144 is about 64970.2327531617. The cubic root of 4221131144 is about 1616.1299614870.

Adding to 4221131144 its reverse (4411311224), we get a palindrome (8632442368).

The spelling of 4221131144 in words is "four billion, two hundred twenty-one million, one hundred thirty-one thousand, one hundred forty-four".