22116226655 has 8 divisors (see below), whose sum is σ = 26541000000. Its totient is φ = 17691962656.

The previous prime is 22116226637. The next prime is 22116226747. The reversal of 22116226655 is 55662261122.

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 22116226655 - 2⁶ = 22116226591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24215 + ... + 211704.

It is an arithmetic number, because the mean of its divisors is an integer number (3317625000).

Almost surely, 2^22116226655 is an apocalyptic number.

22116226655 is a deficient number, since it is larger than the sum of its proper divisors (4424773345).

22116226655 is a wasteful number, since it uses less digits than its factorization.

22116226655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254673.

The product of its digits is 86400, while the sum is 38.

Adding to 22116226655 its reverse (55662261122), we get a palindrome (77778487777).

The spelling of 22116226655 in words is "twenty-two billion, one hundred sixteen million, two hundred twenty-six thousand, six hundred fifty-five".