2221143444605 has 16 divisors (see below), whose sum is σ = 2671274363904. Its totient is φ = 1772983652160.

The previous prime is 2221143444589. The next prime is 2221143444607. The reversal of 2221143444605 is 5064443411222.

2221143444605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221143444605 - 2⁴ = 2221143444589 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 (2221143444607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4571582 + ... + 5034048.

It is an arithmetic number, because the mean of its divisors is an integer number (166954647744).

Almost surely, 2^{2221143444605} is an apocalyptic number.

It is an amenable number.

2221143444605 is a deficient number, since it is larger than the sum of its proper divisors (450130919299).

2221143444605 is a wasteful number, since it uses less digits than its factorization.

2221143444605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464596.

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 2221143444605 its reverse (5064443411222), we get a palindrome (7285586855827).

The spelling of 2221143444605 in words is "two trillion, two hundred twenty-one billion, one hundred forty-three million, four hundred forty-four thousand, six hundred five".