1112110021111 has 4 divisors (see below), whose sum is σ = 1125508937112. Its totient is φ = 1098711105112.

The previous prime is 1112110021109. The next prime is 1112110021117. The reversal of 1112110021111 is 1111200112111.

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 1112110021111 - 2¹ = 1112110021109 is a prime.

It is a super-4 number, since 4×1112110021111⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112110021091 and 1112110021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112110021117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6699457876 + ... + 6699458041.

It is an arithmetic number, because the mean of its divisors is an integer number (281377234278).

Almost surely, 2^{1112110021111} is an apocalyptic number.

1112110021111 is a deficient number, since it is larger than the sum of its proper divisors (13398916001).

1112110021111 is an equidigital number, since it uses as much as digits as its factorization.

1112110021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398916000.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1112110021111 its reverse (1111200112111), we get a palindrome (2223310133222).

The spelling of 1112110021111 in words is "one trillion, one hundred twelve billion, one hundred ten million, twenty-one thousand, one hundred eleven".