22117111247 has 8 divisors (see below), whose sum is σ = 27574580352. Its totient is φ = 17234112600.

The previous prime is 22117111241. The next prime is 22117111249. The reversal of 22117111247 is 74211171122.

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 22117111247 - 2¹⁸ = 22116849103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117111241) 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 7 ways as a sum of consecutive naturals, for example, 143617529 + ... + 143617682.

It is an arithmetic number, because the mean of its divisors is an integer number (3446822544).

Almost surely, 2^22117111247 is an apocalyptic number.

22117111247 is a deficient number, since it is larger than the sum of its proper divisors (5457469105).

22117111247 is a wasteful number, since it uses less digits than its factorization.

22117111247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287235229.

The product of its digits is 1568, while the sum is 29.

Adding to 22117111247 its reverse (74211171122), we get a palindrome (96328282369).

The spelling of 22117111247 in words is "twenty-two billion, one hundred seventeen million, one hundred eleven thousand, two hundred forty-seven".