220242040244 has 12 divisors (see below), whose sum is σ = 408095545284. Its totient is φ = 103643313024.

The previous prime is 220242040223. The next prime is 220242040247. The reversal of 220242040244 is 442040242022.

It can be written as a sum of positive squares in 2 ways, for example, as 117080308900 + 103161731344 = 342170^2 + 321188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220242040247) 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, 1619426699 + ... + 1619426834.

It is an arithmetic number, because the mean of its divisors is an integer number (34007962107).

Almost surely, 2^220242040244 is an apocalyptic number.

It is an amenable number.

220242040244 is a deficient number, since it is larger than the sum of its proper divisors (187853505040).

220242040244 is a wasteful number, since it uses less digits than its factorization.

220242040244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238853554 (or 3238853552 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 220242040244 its reverse (442040242022), we get a palindrome (662282282266).

The spelling of 220242040244 in words is "two hundred twenty billion, two hundred forty-two million, forty thousand, two hundred forty-four".