4001222443 has 4 divisors (see below), whose sum is σ = 4001363488. Its totient is φ = 4001081400.

The previous prime is 4001222413. The next prime is 4001222507. The reversal of 4001222443 is 3442221004.

It is a happy number.

4001222443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4001222443 - 2¹⁷ = 4001091371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001222413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11508 + ... + 90193.

It is an arithmetic number, because the mean of its divisors is an integer number (1000340872).

Almost surely, 2^4001222443 is an apocalyptic number.

4001222443 is a deficient number, since it is larger than the sum of its proper divisors (141045).

4001222443 is a wasteful number, since it uses less digits than its factorization.

4001222443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141044.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4001222443 is about 63255.2167255792. The cubic root of 4001222443 is about 1587.5627444397.

Adding to 4001222443 its reverse (3442221004), we get a palindrome (7443443447).

The spelling of 4001222443 in words is "four billion, one million, two hundred twenty-two thousand, four hundred forty-three".