22111102022121 has 16 divisors (see below), whose sum is σ = 37436786492800. Its totient is φ = 12634915441104.

The previous prime is 22111102022117. The next prime is 22111102022131. The reversal of 22111102022121 is 12122020111122.

It is not a de Polignac number, because 22111102022121 - 2² = 22111102022117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22111102022094 and 22111102022103.

It is not an unprimeable number, because it can be changed into a prime (22111102022131) 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 15 ways as a sum of consecutive naturals, for example, 58494978706 + ... + 58494979083.

It is an arithmetic number, because the mean of its divisors is an integer number (2339799155800).

Almost surely, 2^{22111102022121} is an apocalyptic number.

22111102022121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22111102022121 is a deficient number, since it is larger than the sum of its proper divisors (15325684470679).

22111102022121 is a wasteful number, since it uses less digits than its factorization.

22111102022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116989957805 (or 116989957799 counting only the distinct ones).

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

Adding to 22111102022121 its reverse (12122020111122), we get a palindrome (34233122133243).

The spelling of 22111102022121 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, twenty-two thousand, one hundred twenty-one".