11112011211 has 48 divisors (see below), whose sum is σ = 17367799680. Its totient is φ = 6301008000.

The previous prime is 11112011201. The next prime is 11112011231. The reversal of 11112011211 is 11211021111.

It is not a de Polignac number, because 11112011211 - 2⁷ = 11112011083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11112011201) 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 47 ways as a sum of consecutive naturals, for example, 16861600 + ... + 16862258.

It is an arithmetic number, because the mean of its divisors is an integer number (361829160).

Almost surely, 2^11112011211 is an apocalyptic number.

11112011211 is a deficient number, since it is larger than the sum of its proper divisors (6255788469).

11112011211 is a wasteful number, since it uses less digits than its factorization.

11112011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11112011211 its reverse (11211021111), we get a palindrome (22323032322).

The spelling of 11112011211 in words is "eleven billion, one hundred twelve million, eleven thousand, two hundred eleven".