244145413313221 has 8 divisors (see below), whose sum is σ = 281631024169920. Its totient is φ = 207311726123808.

The previous prime is 244145413313171. The next prime is 244145413313231. The reversal of 244145413313221 is 122313314541442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244145413313221 - 2¹⁷ = 244145413182149 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 (244145413313231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162980916016 + ... + 162980917513.

It is an arithmetic number, because the mean of its divisors is an integer number (35203878021240).

Almost surely, 2^{244145413313221} is an apocalyptic number.

It is an amenable number.

244145413313221 is a deficient number, since it is larger than the sum of its proper divisors (37485610856699).

244145413313221 is a wasteful number, since it uses less digits than its factorization.

244145413313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325961833643.

The product of its digits is 276480, while the sum is 40.

Adding to 244145413313221 its reverse (122313314541442), we get a palindrome (366458727854663).

The spelling of 244145413313221 in words is "two hundred forty-four trillion, one hundred forty-five billion, four hundred thirteen million, three hundred thirteen thousand, two hundred twenty-one".