220444240105 has 16 divisors (see below), whose sum is σ = 275792299200. Its totient is φ = 169004017728.

The previous prime is 220444240067. The next prime is 220444240153. The reversal of 220444240105 is 501042444022.

It is a cyclic number.

It is not a de Polignac number, because 220444240105 - 2¹⁵ = 220444207337 is a prime.

It is a super-2 number, since 2×220444240105² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9661455 + ... + 9684244.

It is an arithmetic number, because the mean of its divisors is an integer number (17237018700).

Almost surely, 2^220444240105 is an apocalyptic number.

It is an amenable number.

220444240105 is a deficient number, since it is larger than the sum of its proper divisors (55348059095).

220444240105 is a wasteful number, since it uses less digits than its factorization.

220444240105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19345800.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 220444240105 its reverse (501042444022), we get a palindrome (721486684127).

The spelling of 220444240105 in words is "two hundred twenty billion, four hundred forty-four million, two hundred forty thousand, one hundred five".