2122443330445 has 16 divisors (see below), whose sum is σ = 2560316059440. Its totient is φ = 1689051295744.

The previous prime is 2122443330443. The next prime is 2122443330461. The reversal of 2122443330445 is 5440333442212.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1116967855689 + 1005475474756 = 1056867^2 + 1002734^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122443330445 - 2¹ = 2122443330443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122443330443) 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, 330004 + ... + 2086573.

It is an arithmetic number, because the mean of its divisors is an integer number (160019753715).

Almost surely, 2^{2122443330445} is an apocalyptic number.

It is an amenable number.

2122443330445 is a deficient number, since it is larger than the sum of its proper divisors (437872728995).

2122443330445 is a wasteful number, since it uses less digits than its factorization.

2122443330445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417504.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 2122443330445 its reverse (5440333442212), we get a palindrome (7562776772657).

The spelling of 2122443330445 in words is "two trillion, one hundred twenty-two billion, four hundred forty-three million, three hundred thirty thousand, four hundred forty-five".