12211111212101 has 8 divisors (see below), whose sum is σ = 12798161383104. Its totient is φ = 11628738732160.

The previous prime is 12211111212071. The next prime is 12211111212107. The reversal of 12211111212101 is 10121211111221.

12211111212101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12211111212101 - 2³⁰ = 12210037470277 is a prime.

It is a super-2 number, since 2×12211111212101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12211111212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211111212107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1169417420 + ... + 1169427861.

It is an arithmetic number, because the mean of its divisors is an integer number (1599770172888).

Almost surely, 2^{12211111212101} is an apocalyptic number.

It is an amenable number.

12211111212101 is a deficient number, since it is larger than the sum of its proper divisors (587050171003).

12211111212101 is a wasteful number, since it uses less digits than its factorization.

12211111212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338845531.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12211111212101 its reverse (10121211111221), we get a palindrome (22332322323322).

The spelling of 12211111212101 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, two hundred twelve thousand, one hundred one".