44321123555221 has 4 divisors (see below), whose sum is σ = 46928248470252. Its totient is φ = 41713998640192.

The previous prime is 44321123555213. The next prime is 44321123555249. The reversal of 44321123555221 is 12255532112344.

44321123555221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 20572665204100 + 23748458351121 = 4535710^2 + 4873239^2 .

It is a cyclic number.

It is not a de Polignac number, because 44321123555221 - 2³ = 44321123555213 is a prime.

It is a super-3 number, since 3×44321123555221³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44321123553221) 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, 1303562457490 + ... + 1303562457523.

It is an arithmetic number, because the mean of its divisors is an integer number (11732062117563).

Almost surely, 2^{44321123555221} is an apocalyptic number.

It is an amenable number.

44321123555221 is a deficient number, since it is larger than the sum of its proper divisors (2607124915031).

44321123555221 is a wasteful number, since it uses less digits than its factorization.

44321123555221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607124915030.

The product of its digits is 288000, while the sum is 40.

Adding to 44321123555221 its reverse (12255532112344), we get a palindrome (56576655667565).

The spelling of 44321123555221 in words is "forty-four trillion, three hundred twenty-one billion, one hundred twenty-three million, five hundred fifty-five thousand, two hundred twenty-one".