1111112220111 has 32 divisors (see below), whose sum is σ = 1570818643968. Its totient is φ = 697377237120.

The previous prime is 1111112220077. The next prime is 1111112220121. The reversal of 1111112220111 is 1110222111111.

It is not a de Polignac number, because 1111112220111 - 2³⁹ = 561356406223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111112220121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31959840 + ... + 31994586.

It is an arithmetic number, because the mean of its divisors is an integer number (49088082624).

Almost surely, 2^{1111112220111} is an apocalyptic number.

1111112220111 is a deficient number, since it is larger than the sum of its proper divisors (459706423857).

1111112220111 is a wasteful number, since it uses less digits than its factorization.

1111112220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44111.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1111112220111 its reverse (1110222111111), we get a palindrome (2221334331222).

The spelling of 1111112220111 in words is "one trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".