22205204442 has 48 divisors (see below), whose sum is σ = 48566592360. Its totient is φ = 7331767296.

The previous prime is 22205204407. The next prime is 22205204443. The reversal of 22205204442 is 24440250222.

It can be written as a sum of positive squares in 4 ways, for example, as 8302672161 + 13902532281 = 91119^2 + 117909^2 .

It is a super-2 number, since 2×22205204442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22205204443) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6037108 + ... + 6040784.

Almost surely, 2^22205204442 is an apocalyptic number.

22205204442 is an abundant number, since it is smaller than the sum of its proper divisors (26361387918).

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

22205204442 is a wasteful number, since it uses less digits than its factorization.

22205204442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767 (or 6764 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 22205204442 its reverse (24440250222), we get a palindrome (46645454664).

The spelling of 22205204442 in words is "twenty-two billion, two hundred five million, two hundred four thousand, four hundred forty-two".