1112122122011 has 4 divisors (see below), whose sum is σ = 1112343532992. Its totient is φ = 1111900711032.

The previous prime is 1112122121993. The next prime is 1112122122047. The reversal of 1112122122011 is 1102212212111.

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 1112122122011 - 2¹⁰ = 1112122120987 is a prime.

It is a super-2 number, since 2×1112122122011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112122122091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110697956 + ... + 110708001.

It is an arithmetic number, because the mean of its divisors is an integer number (278085883248).

Almost surely, 2^{1112122122011} is an apocalyptic number.

1112122122011 is a deficient number, since it is larger than the sum of its proper divisors (221410981).

1112122122011 is an equidigital number, since it uses as much as digits as its factorization.

1112122122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221410980.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1112122122011 its reverse (1102212212111), we get a palindrome (2214334334122).

The spelling of 1112122122011 in words is "one trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".