22268086221 has 32 divisors (see below), whose sum is σ = 30609786240. Its totient is φ = 14394931200.

The previous prime is 22268086171. The next prime is 22268086229. The reversal of 22268086221 is 12268086222.

It is a de Polignac number, because none of the positive numbers 2^k-22268086221 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 22268086221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22268086229) 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 31 ways as a sum of consecutive naturals, for example, 3123541 + ... + 3130661.

It is an arithmetic number, because the mean of its divisors is an integer number (956555820).

Almost surely, 2^22268086221 is an apocalyptic number.

It is an amenable number.

22268086221 is a deficient number, since it is larger than the sum of its proper divisors (8341700019).

22268086221 is a wasteful number, since it uses less digits than its factorization.

22268086221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437.

The product of its (nonzero) digits is 73728, while the sum is 39.

Subtracting from 22268086221 its reverse (12268086222), we obtain a palindrome (9999999999).

The spelling of 22268086221 in words is "twenty-two billion, two hundred sixty-eight million, eighty-six thousand, two hundred twenty-one".