111010222111 has 4 divisors (see below), whose sum is σ = 116852865400. Its totient is φ = 105167578824.

The previous prime is 111010222109. The next prime is 111010222121. The reversal of 111010222111 is 111222010111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111010222111 - 2¹ = 111010222109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010222091 and 111010222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010222121) 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 3 ways as a sum of consecutive naturals, for example, 2921321616 + ... + 2921321653.

It is an arithmetic number, because the mean of its divisors is an integer number (29213216350).

Almost surely, 2^111010222111 is an apocalyptic number.

111010222111 is a deficient number, since it is larger than the sum of its proper divisors (5842643289).

111010222111 is an equidigital number, since it uses as much as digits as its factorization.

111010222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842643288.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111010222111 its reverse (111222010111), we get a palindrome (222232232222).

The spelling of 111010222111 in words is "one hundred eleven billion, ten million, two hundred twenty-two thousand, one hundred eleven".