4221544412 has 48 divisors (see below), whose sum is σ = 8140769280. Its totient is φ = 1907841600.

The previous prime is 4221544351. The next prime is 4221544421. The reversal of 4221544412 is 2144451224.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154658 + ... + 179894.

It is an arithmetic number, because the mean of its divisors is an integer number (169599360).

Almost surely, 2^4221544412 is an apocalyptic number.

It is an amenable number.

4221544412 is a deficient number, since it is larger than the sum of its proper divisors (3919224868).

4221544412 is a wasteful number, since it uses less digits than its factorization.

4221544412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25362 (or 25360 counting only the distinct ones).

The product of its digits is 10240, while the sum is 29.

The square root of 4221544412 is about 64973.4131164433. The cubic root of 4221544412 is about 1616.1827019318.

Adding to 4221544412 its reverse (2144451224), we get a palindrome (6365995636).

The spelling of 4221544412 in words is "four billion, two hundred twenty-one million, five hundred forty-four thousand, four hundred twelve".