4223234021 has 4 divisors (see below), whose sum is σ = 4313090112. Its totient is φ = 4133377932.

The previous prime is 4223234017. The next prime is 4223234047. The reversal of 4223234021 is 1204323224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4223234021 - 2² = 4223234017 is a prime.

It is a super-2 number, since 2×4223234021² = 35671411192263656882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223234051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 44927975 + ... + 44928068.

It is an arithmetic number, because the mean of its divisors is an integer number (1078272528).

Almost surely, 2^4223234021 is an apocalyptic number.

It is an amenable number.

4223234021 is a deficient number, since it is larger than the sum of its proper divisors (89856091).

4223234021 is an equidigital number, since it uses as much as digits as its factorization.

4223234021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89856090.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4223234021 is about 64986.4141263387. The cubic root of 4223234021 is about 1616.3982906945.

Adding to 4223234021 its reverse (1204323224), we get a palindrome (5427557245).

The spelling of 4223234021 in words is "four billion, two hundred twenty-three million, two hundred thirty-four thousand, twenty-one".