111011212011 has 96 divisors (see below), whose sum is σ = 184075891200. Its totient is φ = 59163955200.

The previous prime is 111011212001. The next prime is 111011212031. The reversal of 111011212011 is 110212110111.

It is not a de Polignac number, because 111011212011 - 2³³ = 102421277419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111011212001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54442930 + ... + 54444968.

It is an arithmetic number, because the mean of its divisors is an integer number (1917457200).

Almost surely, 2^111011212011 is an apocalyptic number.

111011212011 is a deficient number, since it is larger than the sum of its proper divisors (73064679189).

111011212011 is a wasteful number, since it uses less digits than its factorization.

111011212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369 (or 2362 counting only the distinct ones).

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

Adding to 111011212011 its reverse (110212110111), we get a palindrome (221223322122).

The spelling of 111011212011 in words is "one hundred eleven billion, eleven million, two hundred twelve thousand, eleven".