20440440222 has 16 divisors (see below), whose sum is σ = 40938548880. Its totient is φ = 6803868672.

The previous prime is 20440440211. The next prime is 20440440257. The reversal of 20440440222 is 22204404402.

It is a junction number, because it is equal to n+sod(n) for n = 20440440192 and 20440440201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2398243 + ... + 2406750.

It is an arithmetic number, because the mean of its divisors is an integer number (2558659305).

Almost surely, 2^20440440222 is an apocalyptic number.

20440440222 is an abundant number, since it is smaller than the sum of its proper divisors (20498108658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20440440222 is a wasteful number, since it uses less digits than its factorization.

20440440222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805707.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20440440222 its reverse (22204404402), we get a palindrome (42644844624).

The spelling of 20440440222 in words is "twenty billion, four hundred forty million, four hundred forty thousand, two hundred twenty-two".