22111000111216 has 80 divisors (see below), whose sum is σ = 44163620142048. Its totient is φ = 10718075289600.

The previous prime is 22111000111177. The next prime is 22111000111217. The reversal of 22111000111216 is 61211100011122.

It is a junction number, because it is equal to n+sod(n) for n = 22111000111193 and 22111000111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111000111217) 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 15 ways as a sum of consecutive naturals, for example, 49462786 + ... + 49907806.

Almost surely, 2^{22111000111216} is an apocalyptic number.

It is an amenable number.

22111000111216 is a deficient number, since it is larger than the sum of its proper divisors (22052620030832).

22111000111216 is a wasteful number, since it uses less digits than its factorization.

22111000111216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445610 (or 445604 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 22111000111216 its reverse (61211100011122), we get a palindrome (83322100122338).

The spelling of 22111000111216 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven thousand, two hundred sixteen".