11121102211 has 16 divisors (see below), whose sum is σ = 12598256160. Its totient is φ = 9753454080.

The previous prime is 11121102193. The next prime is 11121102217. The reversal of 11121102211 is 11220112111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11121102211 - 2⁹ = 11121101699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121102191 and 11121102200.

It is not an unprimeable number, because it can be changed into a prime (11121102217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262516 + ... + 301921.

It is an arithmetic number, because the mean of its divisors is an integer number (787391010).

Almost surely, 2^11121102211 is an apocalyptic number.

11121102211 is a deficient number, since it is larger than the sum of its proper divisors (1477153949).

11121102211 is a wasteful number, since it uses less digits than its factorization.

11121102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564534.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11121102211 its reverse (11220112111), we get a palindrome (22341214322).

The spelling of 11121102211 in words is "eleven billion, one hundred twenty-one million, one hundred two thousand, two hundred eleven".