11102221111121 has 4 divisors (see below), whose sum is σ = 12688252698432. Its totient is φ = 9516189523812.

The previous prime is 11102221111057. The next prime is 11102221111127. The reversal of 11102221111121 is 12111112220111.

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 not a de Polignac number, because 11102221111121 - 2⁶ = 11102221111057 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 11102221111121.

It is not an unprimeable number, because it can be changed into a prime (11102221111127) 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 3 ways as a sum of consecutive naturals, for example, 793015793645 + ... + 793015793658.

It is an arithmetic number, because the mean of its divisors is an integer number (3172063174608).

Almost surely, 2^{11102221111121} is an apocalyptic number.

It is an amenable number.

11102221111121 is a deficient number, since it is larger than the sum of its proper divisors (1586031587311).

11102221111121 is an equidigital number, since it uses as much as digits as its factorization.

11102221111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586031587310.

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

Adding to 11102221111121 its reverse (12111112220111), we get a palindrome (23213333331232).

The spelling of 11102221111121 in words is "eleven trillion, one hundred two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-one".