11221102212101 has 4 divisors (see below), whose sum is σ = 11227525283232. Its totient is φ = 11214679140972.

The previous prime is 11221102212079. The next prime is 11221102212137. The reversal of 11221102212101 is 10121220112211.

11221102212101 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221102212101 is a prime.

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 11221102212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221102212191) 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, 3211532945 + ... + 3211536438.

It is an arithmetic number, because the mean of its divisors is an integer number (2806881320808).

Almost surely, 2^{11221102212101} is an apocalyptic number.

It is an amenable number.

11221102212101 is a deficient number, since it is larger than the sum of its proper divisors (6423071131).

11221102212101 is an equidigital number, since it uses as much as digits as its factorization.

11221102212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423071130.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11221102212101 its reverse (10121220112211), we get a palindrome (21342322324312).

The spelling of 11221102212101 in words is "eleven trillion, two hundred twenty-one billion, one hundred two million, two hundred twelve thousand, one hundred one".