2444020430221 has 4 divisors (see below), whose sum is σ = 2450401684992. Its totient is φ = 2437639175452.

The previous prime is 2444020430167. The next prime is 2444020430239. The reversal of 2444020430221 is 1220340204442.

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 2444020430221 - 2⁹ = 2444020429709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2444020430221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2444020430321) 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, 3190626811 + ... + 3190627576.

It is an arithmetic number, because the mean of its divisors is an integer number (612600421248).

Almost surely, 2^{2444020430221} is an apocalyptic number.

It is an amenable number.

2444020430221 is a deficient number, since it is larger than the sum of its proper divisors (6381254771).

2444020430221 is an equidigital number, since it uses as much as digits as its factorization.

2444020430221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381254770.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 2444020430221 its reverse (1220340204442), we get a palindrome (3664360634663).

The spelling of 2444020430221 in words is "two trillion, four hundred forty-four billion, twenty million, four hundred thirty thousand, two hundred twenty-one".