4381220221834 has 4 divisors (see below), whose sum is σ = 6571830332754. Its totient is φ = 2190610110916.

The previous prime is 4381220221831. The next prime is 4381220221837.

4381220221834 is nontrivially palindromic in base 10.

4381220221834 is digitally balanced in base 2, 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 an interprime number because it is at equal distance from previous prime (4381220221831) and next prime (4381220221837).

It can be written as a sum of positive squares in only one way, i.e., 4155788030625 + 225432191209 = 2038575^2 + 474797^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4381220221831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095305055457 + ... + 1095305055460.

Almost surely, 2^{4381220221834} is an apocalyptic number.

4381220221834 is a deficient number, since it is larger than the sum of its proper divisors (2190610110920).

4381220221834 is a wasteful number, since it uses less digits than its factorization.

4381220221834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190610110919.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 4381220221834 in words is "four trillion, three hundred eighty-one billion, two hundred twenty million, two hundred twenty-one thousand, eight hundred thirty-four".