22200111222101 has 4 divisors (see below), whose sum is σ = 22200820046604. Its totient is φ = 22199402397600.

The previous prime is 22200111222049. The next prime is 22200111222181. The reversal of 22200111222101 is 10122211100222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10374834558001 + 11825276664100 = 3220999^2 + 3438790^2 .

It is a cyclic number.

It is not a de Polignac number, because 22200111222101 - 2³⁴ = 22182931352917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22200111222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200111222181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354365270 + ... + 354427911.

It is an arithmetic number, because the mean of its divisors is an integer number (5550205011651).

Almost surely, 2^{22200111222101} is an apocalyptic number.

It is an amenable number.

22200111222101 is a deficient number, since it is larger than the sum of its proper divisors (708824503).

22200111222101 is an equidigital number, since it uses as much as digits as its factorization.

22200111222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708824502.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22200111222101 its reverse (10122211100222), we get a palindrome (32322322322323).

The spelling of 22200111222101 in words is "twenty-two trillion, two hundred billion, one hundred eleven million, two hundred twenty-two thousand, one hundred one".