4221224243 has 4 divisors (see below), whose sum is σ = 4443393960. Its totient is φ = 3999054528.

The previous prime is 4221224239. The next prime is 4221224251. The reversal of 4221224243 is 3424221224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4221224243 - 2² = 4221224239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4221224263) by changing a digit.

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, 111084830 + ... + 111084867.

It is an arithmetic number, because the mean of its divisors is an integer number (1110848490).

Almost surely, 2^4221224243 is an apocalyptic number.

4221224243 is a deficient number, since it is larger than the sum of its proper divisors (222169717).

4221224243 is a wasteful number, since it uses less digits than its factorization.

4221224243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222169716.

The product of its digits is 6144, while the sum is 26.

The square root of 4221224243 is about 64970.9492234799. The cubic root of 4221224243 is about 1616.1418428976.

Adding to 4221224243 its reverse (3424221224), we get a palindrome (7645445467).

The spelling of 4221224243 in words is "four billion, two hundred twenty-one million, two hundred twenty-four thousand, two hundred forty-three".