22201222555 has 8 divisors (see below), whose sum is σ = 26643344832. Its totient is φ = 17759726208.

The previous prime is 22201222541. The next prime is 22201222559. The reversal of 22201222555 is 55522210222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22201222555 - 2⁷ = 22201222427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201222559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74547 + ... + 223516.

It is an arithmetic number, because the mean of its divisors is an integer number (3330418104).

Almost surely, 2^22201222555 is an apocalyptic number.

22201222555 is a deficient number, since it is larger than the sum of its proper divisors (4442122277).

22201222555 is a wasteful number, since it uses less digits than its factorization.

22201222555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312965.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 22201222555 its reverse (55522210222), we get a palindrome (77723432777).

The spelling of 22201222555 in words is "twenty-two billion, two hundred one million, two hundred twenty-two thousand, five hundred fifty-five".