22155522242 has 16 divisors (see below), whose sum is σ = 39979890240. Its totient is φ = 8995475088.

The previous prime is 22155522199. The next prime is 22155522247. The reversal of 22155522242 is 24222555122.

It is a junction number, because it is equal to n+sod(n) for n = 22155522199 and 22155522208.

It is not an unprimeable number, because it can be changed into a prime (22155522247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41645453 + ... + 41645984.

It is an arithmetic number, because the mean of its divisors is an integer number (2498743140).

Almost surely, 2^22155522242 is an apocalyptic number.

22155522242 is a deficient number, since it is larger than the sum of its proper divisors (17824367998).

22155522242 is a wasteful number, since it uses less digits than its factorization.

22155522242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83291465.

The product of its digits is 32000, while the sum is 32.

The spelling of 22155522242 in words is "twenty-two billion, one hundred fifty-five million, five hundred twenty-two thousand, two hundred forty-two".