244120243221 has 6 divisors (see below), whose sum is σ = 352618129110. Its totient is φ = 162746828808.

The previous prime is 244120243189. The next prime is 244120243243. The reversal of 244120243221 is 122342021442.

It is a happy number.

244120243221 is a `hidden beast` number, since 2 + 4 + 4 + 1 + 202 + 432 + 21 = 666.

244120243221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 169320728196 + 74799515025 = 411486^2 + 273495^2 .

It is not a de Polignac number, because 244120243221 - 2⁵ = 244120243189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244120243621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13562235726 + ... + 13562235743.

It is an arithmetic number, because the mean of its divisors is an integer number (58769688185).

Almost surely, 2^244120243221 is an apocalyptic number.

It is an amenable number.

244120243221 is a deficient number, since it is larger than the sum of its proper divisors (108497885889).

244120243221 is a wasteful number, since it uses less digits than its factorization.

244120243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27124471475 (or 27124471472 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 244120243221 its reverse (122342021442), we get a palindrome (366462264663).

The spelling of 244120243221 in words is "two hundred forty-four billion, one hundred twenty million, two hundred forty-three thousand, two hundred twenty-one".