110421342221 has 4 divisors (see below), whose sum is σ = 110607550812. Its totient is φ = 110235133632.

The previous prime is 110421342193. The next prime is 110421342247. The reversal of 110421342221 is 122243124011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93184278121 + 17237064100 = 305261^2 + 131290^2 .

It is a cyclic number.

It is not a de Polignac number, because 110421342221 - 2¹⁰ = 110421341197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110421342121) 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, 93103406 + ... + 93104591.

It is an arithmetic number, because the mean of its divisors is an integer number (27651887703).

Almost surely, 2^110421342221 is an apocalyptic number.

It is an amenable number.

110421342221 is a deficient number, since it is larger than the sum of its proper divisors (186208591).

110421342221 is an equidigital number, since it uses as much as digits as its factorization.

110421342221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186208590.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 110421342221 its reverse (122243124011), we get a palindrome (232664466232).

The spelling of 110421342221 in words is "one hundred ten billion, four hundred twenty-one million, three hundred forty-two thousand, two hundred twenty-one".