12211200021101 has 4 divisors (see below), whose sum is σ = 12211280562204. Its totient is φ = 12211119480000.

The previous prime is 12211200021071. The next prime is 12211200021109. The reversal of 12211200021101 is 10112000211221.

12211200021101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249874015876 + 11961326005225 = 499874^2 + 3458515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211200021101 is a prime.

It is a super-2 number, since 2×12211200021101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211200021109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40042700 + ... + 40346501.

It is an arithmetic number, because the mean of its divisors is an integer number (3052820140551).

Almost surely, 2^{12211200021101} is an apocalyptic number.

It is an amenable number.

12211200021101 is a deficient number, since it is larger than the sum of its proper divisors (80541103).

12211200021101 is an equidigital number, since it uses as much as digits as its factorization.

12211200021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80541102.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12211200021101 its reverse (10112000211221), we get a palindrome (22323200232322).

The spelling of 12211200021101 in words is "twelve trillion, two hundred eleven billion, two hundred million, twenty-one thousand, one hundred one".