111011222211 has 16 divisors (see below), whose sum is σ = 154156439808. Its totient is φ = 70993087200.

The previous prime is 111011222197. The next prime is 111011222213. The reversal of 111011222211 is 112222110111.

It is a happy number.

It is not a de Polignac number, because 111011222211 - 2¹⁰ = 111011221187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111011222213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7035085 + ... + 7050846.

It is an arithmetic number, because the mean of its divisors is an integer number (9634777488).

Almost surely, 2^111011222211 is an apocalyptic number.

111011222211 is a deficient number, since it is larger than the sum of its proper divisors (43145217597).

111011222211 is a wasteful number, since it uses less digits than its factorization.

111011222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086042.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111011222211 its reverse (112222110111), we get a palindrome (223233332322).

The spelling of 111011222211 in words is "one hundred eleven billion, eleven million, two hundred twenty-two thousand, two hundred eleven".