4430013131221 has 4 divisors (see below), whose sum is σ = 4430462842944. Its totient is φ = 4429563419500.

The previous prime is 4430013131171. The next prime is 4430013131227. The reversal of 4430013131221 is 1221313100344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4430013131221 - 2³⁵ = 4395653392853 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 (4430013131227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224841085 + ... + 224860786.

It is an arithmetic number, because the mean of its divisors is an integer number (1107615710736).

Almost surely, 2^{4430013131221} is an apocalyptic number.

It is an amenable number.

4430013131221 is a deficient number, since it is larger than the sum of its proper divisors (449711723).

4430013131221 is an equidigital number, since it uses as much as digits as its factorization.

4430013131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449711722.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 4430013131221 its reverse (1221313100344), we get a palindrome (5651326231565).

The spelling of 4430013131221 in words is "four trillion, four hundred thirty billion, thirteen million, one hundred thirty-one thousand, two hundred twenty-one".