22112110200121 has 8 divisors (see below), whose sum is σ = 23412864688200. Its totient is φ = 20811360392448.

The previous prime is 22112110200071. The next prime is 22112110200133. The reversal of 22112110200121 is 12100201121122.

It can be written as a sum of positive squares in 4 ways, for example, as 5514137168400 + 16597973031721 = 2348220^2 + 4074061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22112110200121 - 2⁹ = 22112110199609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22112110200095 and 22112110200104.

It is not an unprimeable number, because it can be changed into a prime (22112110209121) 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 7 ways as a sum of consecutive naturals, for example, 14729515 + ... + 16161151.

It is an arithmetic number, because the mean of its divisors is an integer number (2926608086025).

Almost surely, 2^{22112110200121} is an apocalyptic number.

It is an amenable number.

22112110200121 is a deficient number, since it is larger than the sum of its proper divisors (1300754488079).

22112110200121 is a wasteful number, since it uses less digits than its factorization.

22112110200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340203.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22112110200121 its reverse (12100201121122), we get a palindrome (34212311321243).

The spelling of 22112110200121 in words is "twenty-two trillion, one hundred twelve billion, one hundred ten million, two hundred thousand, one hundred twenty-one".