111011211211 has 8 divisors (see below), whose sum is σ = 112041641360. Its totient is φ = 109980999072.

The previous prime is 111011211167. The next prime is 111011211247. The reversal of 111011211211 is 112112110111.

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 111011211211 - 2²¹ = 111009114059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111011211191 and 111011211200.

It is not an unprimeable number, because it can be changed into a prime (111011211611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1077016 + ... + 1175578.

It is an arithmetic number, because the mean of its divisors is an integer number (14005205170).

Almost surely, 2^111011211211 is an apocalyptic number.

111011211211 is a deficient number, since it is larger than the sum of its proper divisors (1030430149).

111011211211 is a wasteful number, since it uses less digits than its factorization.

111011211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109005.

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

Adding to 111011211211 its reverse (112112110111), we get a palindrome (223123321322).

The spelling of 111011211211 in words is "one hundred eleven billion, eleven million, two hundred eleven thousand, two hundred eleven".