13224046221481 has 4 divisors (see below), whose sum is σ = 13224257473492. Its totient is φ = 13223834969472.

The previous prime is 13224046221473. The next prime is 13224046221511. The reversal of 13224046221481 is 18412264042231.

It is a happy number.

13224046221481 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 can be written as a sum of positive squares in 2 ways, for example, as 2792438181481 + 10431608040000 = 1671059^2 + 3229800^2 .

It is a cyclic number.

It is not a de Polignac number, because 13224046221481 - 2³ = 13224046221473 is a prime.

It is a super-2 number, since 2×13224046221481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13224046221431) 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, 105532080 + ... + 105657313.

It is an arithmetic number, because the mean of its divisors is an integer number (3306064368373).

Almost surely, 2^{13224046221481} is an apocalyptic number.

It is an amenable number.

13224046221481 is a deficient number, since it is larger than the sum of its proper divisors (211252011).

13224046221481 is an equidigital number, since it uses as much as digits as its factorization.

13224046221481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211252010.

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

The spelling of 13224046221481 in words is "thirteen trillion, two hundred twenty-four billion, forty-six million, two hundred twenty-one thousand, four hundred eighty-one".