1441224432421 has 4 divisors (see below), whose sum is σ = 1453978631052. Its totient is φ = 1428470233792.

The previous prime is 1441224432377. The next prime is 1441224432491. The reversal of 1441224432421 is 1242344221441.

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 482615037025 + 958609395396 = 694705^2 + 979086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441224432421 - 2⁹ = 1441224431909 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 (1441224432491) 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, 6377099146 + ... + 6377099371.

It is an arithmetic number, because the mean of its divisors is an integer number (363494657763).

Almost surely, 2^{1441224432421} is an apocalyptic number.

It is an amenable number.

1441224432421 is a deficient number, since it is larger than the sum of its proper divisors (12754198631).

1441224432421 is a wasteful number, since it uses less digits than its factorization.

1441224432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12754198630.

The product of its digits is 49152, while the sum is 34.

Adding to 1441224432421 its reverse (1242344221441), we get a palindrome (2683568653862).

The spelling of 1441224432421 in words is "one trillion, four hundred forty-one billion, two hundred twenty-four million, four hundred thirty-two thousand, four hundred twenty-one".