22111000202201 has 4 divisors (see below), whose sum is σ = 22122094534452. Its totient is φ = 22099905869952.

The previous prime is 22111000202173. The next prime is 22111000202227. The reversal of 22111000202201 is 10220200011122.

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 9439365246025 + 12671634956176 = 3072355^2 + 3559724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111000202201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111000207201) 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 3 ways as a sum of consecutive naturals, for example, 5547163136 + ... + 5547167121.

It is an arithmetic number, because the mean of its divisors is an integer number (5530523633613).

Almost surely, 2^{22111000202201} is an apocalyptic number.

It is an amenable number.

22111000202201 is a deficient number, since it is larger than the sum of its proper divisors (11094332251).

22111000202201 is a wasteful number, since it uses less digits than its factorization.

22111000202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11094332250.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22111000202201 its reverse (10220200011122), we get a palindrome (32331200213323).

The spelling of 22111000202201 in words is "twenty-two trillion, one hundred eleven billion, two hundred two thousand, two hundred one".