1112122212101 has 4 divisors (see below), whose sum is σ = 1177541165772. Its totient is φ = 1046703258432.

The previous prime is 1112122212059. The next prime is 1112122212181. The reversal of 1112122212101 is 1012122212111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 412639216900 + 699482995201 = 642370^2 + 836351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112122212101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 65418953653 = 1112122212101 / (1 + 1 + 1 + 2 + 1 + 2 + 2 + 2 + 1 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112122212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112122212181) 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, 32709476810 + ... + 32709476843.

It is an arithmetic number, because the mean of its divisors is an integer number (294385291443).

Almost surely, 2^{1112122212101} is an apocalyptic number.

It is an amenable number.

1112122212101 is a deficient number, since it is larger than the sum of its proper divisors (65418953671).

1112122212101 is an equidigital number, since it uses as much as digits as its factorization.

1112122212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65418953670.

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

Adding to 1112122212101 its reverse (1012122212111), we get a palindrome (2124244424212).

The spelling of 1112122212101 in words is "one trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twelve thousand, one hundred one".