121224314443 has 4 divisors (see below), whose sum is σ = 121225015080. Its totient is φ = 121223613808.

The previous prime is 121224314413. The next prime is 121224314473. The reversal of 121224314443 is 344413422121.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 344413422121 = 31 ⋅11110110391.

It is an interprime number because it is at equal distance from previous prime (121224314413) and next prime (121224314473).

It is a cyclic number.

It is not a de Polignac number, because 121224314443 - 2⁵ = 121224314411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121224314413) 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, 117096 + ... + 506122.

It is an arithmetic number, because the mean of its divisors is an integer number (30306253770).

Almost surely, 2^121224314443 is an apocalyptic number.

121224314443 is a deficient number, since it is larger than the sum of its proper divisors (700637).

121224314443 is an equidigital number, since it uses as much as digits as its factorization.

121224314443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700636.

The product of its digits is 18432, while the sum is 31.

Adding to 121224314443 its reverse (344413422121), we get a palindrome (465637736564).

The spelling of 121224314443 in words is "one hundred twenty-one billion, two hundred twenty-four million, three hundred fourteen thousand, four hundred forty-three".