11121133211 has 8 divisors (see below), whose sum is σ = 11198528640. Its totient is φ = 11043888832.

The previous prime is 11121133207. The next prime is 11121133229. The reversal of 11121133211 is 11233112111.

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 11121133211 - 2² = 11121133207 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 11121133211.

It is not an unprimeable number, because it can be changed into a prime (11121133271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112055 + ... + 186543.

It is an arithmetic number, because the mean of its divisors is an integer number (1399816080).

Almost surely, 2^11121133211 is an apocalyptic number.

11121133211 is a deficient number, since it is larger than the sum of its proper divisors (77395429).

11121133211 is an equidigital number, since it uses as much as digits as its factorization.

11121133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75525.

The product of its digits is 36, while the sum is 17.

Adding to 11121133211 its reverse (11233112111), we get a palindrome (22354245322).

The spelling of 11121133211 in words is "eleven billion, one hundred twenty-one million, one hundred thirty-three thousand, two hundred eleven".