22011122120121 has 12 divisors (see below), whose sum is σ = 31793908381248. Its totient is φ = 14674051266264.

The previous prime is 22011122120101. The next prime is 22011122120129. The reversal of 22011122120121 is 12102122111022.

22011122120121 is a `hidden beast` number, since 220 + 1 + 1 + 1 + 221 + 201 + 21 = 666.

It is not a de Polignac number, because 22011122120121 - 2¹⁰ = 22011122119097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22011122120094 and 22011122120103.

It is not an unprimeable number, because it can be changed into a prime (22011122120129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2675716 + ... + 7154138.

It is an arithmetic number, because the mean of its divisors is an integer number (2649492365104).

Almost surely, 2^{22011122120121} is an apocalyptic number.

It is an amenable number.

22011122120121 is a deficient number, since it is larger than the sum of its proper divisors (9782786261127).

22011122120121 is a wasteful number, since it uses less digits than its factorization.

22011122120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024532 (or 5024529 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22011122120121 its reverse (12102122111022), we get a palindrome (34113244231143).

Subtracting from 22011122120121 its reverse (12102122111022), we obtain a palindrome (9909000009099).

The spelling of 22011122120121 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".