11112011001211 has 16 divisors (see below), whose sum is σ = 11619304639488. Its totient is φ = 10614257546400.

The previous prime is 11112011001209. The next prime is 11112011001229. The reversal of 11112011001211 is 11210011021111.

It is a cyclic number.

It is not a de Polignac number, because 11112011001211 - 2¹ = 11112011001209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112011001191 and 11112011001200.

It is not an unprimeable number, because it can be changed into a prime (11112011001251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827905 + ... + 4786381.

It is an arithmetic number, because the mean of its divisors is an integer number (726206539968).

Almost surely, 2^{11112011001211} is an apocalyptic number.

11112011001211 is a deficient number, since it is larger than the sum of its proper divisors (507293638277).

11112011001211 is a wasteful number, since it uses less digits than its factorization.

11112011001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959682.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11112011001211 its reverse (11210011021111), we get a palindrome (22322022022322).

The spelling of 11112011001211 in words is "eleven trillion, one hundred twelve billion, eleven million, one thousand, two hundred eleven".