111112222200111 has 40 divisors (see below), whose sum is σ = 182083343904000. Its totient is φ = 66964535375760.

The previous prime is 111112222200097. The next prime is 111112222200151. The reversal of 111112222200111 is 111002222211111.

It is a happy number.

111112222200111 is a `hidden beast` number, since 1 + 1 + 111 + 222 + 220 + 0 + 111 = 666.

It is not a de Polignac number, because 111112222200111 - 2¹⁸ = 111112221937967 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112222200151) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 348178711 + ... + 348497688.

It is an arithmetic number, because the mean of its divisors is an integer number (4552083597600).

Almost surely, 2^{111112222200111} is an apocalyptic number.

111112222200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111112222200111 is a deficient number, since it is larger than the sum of its proper divisors (70971121703889).

111112222200111 is a wasteful number, since it uses less digits than its factorization.

111112222200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696676601 (or 696676592 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111112222200111 its reverse (111002222211111), we get a palindrome (222114444411222).

The spelling of 111112222200111 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twenty-two million, two hundred thousand, one hundred eleven".