1112201111 has 4 divisors (see below), whose sum is σ = 1271086992. Its totient is φ = 953315232.

The previous prime is 1112201099. The next prime is 1112201141. The reversal of 1112201111 is 1111022111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112201111 is a prime.

It is a super-2 number, since 2×1112201111² = 2473982622619268642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112201092 and 1112201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112201141) 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, 79442930 + ... + 79442943.

It is an arithmetic number, because the mean of its divisors is an integer number (317771748).

Almost surely, 2^1112201111 is an apocalyptic number.

1112201111 is a deficient number, since it is larger than the sum of its proper divisors (158885881).

1112201111 is an equidigital number, since it uses as much as digits as its factorization.

1112201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158885880.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 1112201111 is about 33349.6793237956. The cubic root of 1112201111 is about 1036.0827462692.

Adding to 1112201111 its reverse (1111022111), we get a palindrome (2223223222).

The spelling of 1112201111 in words is "one billion, one hundred twelve million, two hundred one thousand, one hundred eleven".