4221125624 has 16 divisors (see below), whose sum is σ = 8187528600. Its totient is φ = 2037784672.

The previous prime is 4221125617. The next prime is 4221125651. The reversal of 4221125624 is 4265211224.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9097022 + ... + 9097485.

Almost surely, 2^4221125624 is an apocalyptic number.

It is an amenable number.

4221125624 is a deficient number, since it is larger than the sum of its proper divisors (3966402976).

4221125624 is a wasteful number, since it uses less digits than its factorization.

4221125624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18194542 (or 18194538 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 4221125624 is about 64970.1902721548. The cubic root of 4221125624 is about 1616.1292570122.

Adding to 4221125624 its reverse (4265211224), we get a palindrome (8486336848).

The spelling of 4221125624 in words is "four billion, two hundred twenty-one million, one hundred twenty-five thousand, six hundred twenty-four".