104221220243 has 4 divisors (see below), whose sum is σ = 119109966000. Its totient is φ = 89332474488.

The previous prime is 104221220209. The next prime is 104221220261. The reversal of 104221220243 is 342022122401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342022122401 = 129553 ⋅2640017.

It is a cyclic number.

It is not a de Polignac number, because 104221220243 - 2¹⁴ = 104221203859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104221220203) 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, 7444372868 + ... + 7444372881.

It is an arithmetic number, because the mean of its divisors is an integer number (29777491500).

Almost surely, 2^104221220243 is an apocalyptic number.

104221220243 is a deficient number, since it is larger than the sum of its proper divisors (14888745757).

104221220243 is an equidigital number, since it uses as much as digits as its factorization.

104221220243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14888745756.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 104221220243 its reverse (342022122401), we get a palindrome (446243342644).

The spelling of 104221220243 in words is "one hundred four billion, two hundred twenty-one million, two hundred twenty thousand, two hundred forty-three".