244163404221 has 32 divisors (see below), whose sum is σ = 364784999040. Its totient is φ = 143981260800.

The previous prime is 244163404217. The next prime is 244163404223. The reversal of 244163404221 is 122404361442.

It is not a de Polignac number, because 244163404221 - 2² = 244163404217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244163404223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262765 + ... + 746573.

It is an arithmetic number, because the mean of its divisors is an integer number (11399531220).

Almost surely, 2^244163404221 is an apocalyptic number.

It is an amenable number.

244163404221 is a deficient number, since it is larger than the sum of its proper divisors (120621594819).

244163404221 is a wasteful number, since it uses less digits than its factorization.

244163404221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484237.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 244163404221 its reverse (122404361442), we get a palindrome (366567765663).

The spelling of 244163404221 in words is "two hundred forty-four billion, one hundred sixty-three million, four hundred four thousand, two hundred twenty-one".