244134450221 has 4 divisors (see below), whose sum is σ = 258495300252. Its totient is φ = 229773600192.

The previous prime is 244134450151. The next prime is 244134450227. The reversal of 244134450221 is 122054431442.

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 203031348100 + 41103102121 = 450590^2 + 202739^2 .

It is a cyclic number.

It is not a de Polignac number, because 244134450221 - 2¹⁰ = 244134449197 is a prime.

It is a super-3 number, since 3×244134450221³ (a number of 35 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 (244134450227) 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, 7180424990 + ... + 7180425023.

It is an arithmetic number, because the mean of its divisors is an integer number (64623825063).

Almost surely, 2^244134450221 is an apocalyptic number.

It is an amenable number.

244134450221 is a deficient number, since it is larger than the sum of its proper divisors (14360850031).

244134450221 is a wasteful number, since it uses less digits than its factorization.

244134450221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360850030.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 244134450221 its reverse (122054431442), we get a palindrome (366188881663).

The spelling of 244134450221 in words is "two hundred forty-four billion, one hundred thirty-four million, four hundred fifty thousand, two hundred twenty-one".