22011200222121 has 12 divisors (see below), whose sum is σ = 34684315501680. Its totient is φ = 13340121346680.

The previous prime is 22011200222113. The next prime is 22011200222149. The reversal of 22011200222121 is 12122200211022.

It is a happy number.

22011200222121 is a `hidden beast` number, since 2 + 201 + 120 + 0 + 222 + 121 = 666.

It is not a de Polignac number, because 22011200222121 - 2³ = 22011200222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22011200222094 and 22011200222103.

It is not an unprimeable number, because it can be changed into a prime (22011200222191) 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 11 ways as a sum of consecutive naturals, for example, 111167677791 + ... + 111167677988.

It is an arithmetic number, because the mean of its divisors is an integer number (2890359625140).

Almost surely, 2^{22011200222121} is an apocalyptic number.

It is an amenable number.

22011200222121 is a deficient number, since it is larger than the sum of its proper divisors (12673115279559).

22011200222121 is a wasteful number, since it uses less digits than its factorization.

22011200222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222335355796 (or 222335355793 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22011200222121 its reverse (12122200211022), we get a palindrome (34133400433143).

The spelling of 22011200222121 in words is "twenty-two trillion, eleven billion, two hundred million, two hundred twenty-two thousand, one hundred twenty-one".