4222420243 has 4 divisors (see below), whose sum is σ = 4231579968. Its totient is φ = 4213260520.

The previous prime is 4222420177. The next prime is 4222420253. The reversal of 4222420243 is 3420242224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4222420243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4222420253) 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, 4579171 + ... + 4580092.

It is an arithmetic number, because the mean of its divisors is an integer number (1057894992).

Almost surely, 2^4222420243 is an apocalyptic number.

4222420243 is a deficient number, since it is larger than the sum of its proper divisors (9159725).

4222420243 is an equidigital number, since it uses as much as digits as its factorization.

4222420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9159724.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 4222420243 is about 64980.1526852623. The cubic root of 4222420243 is about 1616.2944623757.

Adding to 4222420243 its reverse (3420242224), we get a palindrome (7642662467).

The spelling of 4222420243 in words is "four billion, two hundred twenty-two million, four hundred twenty thousand, two hundred forty-three".