11335212111 has 16 divisors (see below), whose sum is σ = 16012360800. Its totient is φ = 7107975168.

The previous prime is 11335212029. The next prime is 11335212173. The reversal of 11335212111 is 11121253311.

11335212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11335212111 - 2¹⁰ = 11335211087 is a prime.

It is a super-3 number, since 3×11335212111³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11335212181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18535 + ... + 151703.

It is an arithmetic number, because the mean of its divisors is an integer number (1000772550).

Almost surely, 2^11335212111 is an apocalyptic number.

11335212111 is a deficient number, since it is larger than the sum of its proper divisors (4677148689).

11335212111 is a wasteful number, since it uses less digits than its factorization.

11335212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134858.

The product of its digits is 180, while the sum is 21.

Adding to 11335212111 its reverse (11121253311), we get a palindrome (22456465422).

It can be divided in two parts, 11335 and 212111, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 11335212111 in words is "eleven billion, three hundred thirty-five million, two hundred twelve thousand, one hundred eleven".