22111072207 has 16 divisors (see below), whose sum is σ = 25550471232. Its totient is φ = 18742291200.

The previous prime is 22111072199. The next prime is 22111072229. The reversal of 22111072207 is 70227011122.

It is a cyclic number.

It is not a de Polignac number, because 22111072207 - 2³ = 22111072199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111072267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587653 + ... + 624145.

It is an arithmetic number, because the mean of its divisors is an integer number (1596904452).

Almost surely, 2^22111072207 is an apocalyptic number.

22111072207 is a deficient number, since it is larger than the sum of its proper divisors (3439399025).

22111072207 is a wasteful number, since it uses less digits than its factorization.

22111072207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37458.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 22111072207 its reverse (70227011122), we get a palindrome (92338083329).

The spelling of 22111072207 in words is "twenty-two billion, one hundred eleven million, seventy-two thousand, two hundred seven".