110421124421 has 4 divisors (see below), whose sum is σ = 110422074252. Its totient is φ = 110420174592.

The previous prime is 110421124339. The next prime is 110421124477. The reversal of 110421124421 is 124421124011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 71883508321 + 38537616100 = 268111^2 + 196310^2 .

It is a cyclic number.

It is not a de Polignac number, because 110421124421 - 2³⁰ = 109347382597 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 (110421124621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271490 + ... + 542723.

It is an arithmetic number, because the mean of its divisors is an integer number (27605518563).

Almost surely, 2^110421124421 is an apocalyptic number.

It is an amenable number.

110421124421 is a deficient number, since it is larger than the sum of its proper divisors (949831).

110421124421 is an equidigital number, since it uses as much as digits as its factorization.

110421124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949830.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 110421124421 its reverse (124421124011), we get a palindrome (234842248432).

The spelling of 110421124421 in words is "one hundred ten billion, four hundred twenty-one million, one hundred twenty-four thousand, four hundred twenty-one".