112012021111 has 4 divisors (see below), whose sum is σ = 112032183592. Its totient is φ = 111991858632.

The previous prime is 112012021097. The next prime is 112012021139. The reversal of 112012021111 is 111120210211.

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 112012021111 - 2⁹ = 112012020599 is a prime.

It is a super-2 number, since 2×112012021111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112012021091 and 112012021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012021411) 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, 10072905 + ... + 10084018.

It is an arithmetic number, because the mean of its divisors is an integer number (28008045898).

Almost surely, 2^112012021111 is an apocalyptic number.

112012021111 is a deficient number, since it is larger than the sum of its proper divisors (20162481).

112012021111 is an equidigital number, since it uses as much as digits as its factorization.

112012021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20162480.

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

Adding to 112012021111 its reverse (111120210211), we get a palindrome (223132231322).

The spelling of 112012021111 in words is "one hundred twelve billion, twelve million, twenty-one thousand, one hundred eleven".