1112020111001 has 4 divisors (see below), whose sum is σ = 1150365632100. Its totient is φ = 1073674589904.

The previous prime is 1112020110991. The next prime is 1112020111031. The reversal of 1112020111001 is 1001110202111.

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 187230155401 + 924789955600 = 432701^2 + 961660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112020111001 - 2¹⁴ = 1112020094617 is a prime.

It is a super-2 number, since 2×1112020111001² (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 (1112020111031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19172760506 + ... + 19172760563.

It is an arithmetic number, because the mean of its divisors is an integer number (287591408025).

Almost surely, 2^{1112020111001} is an apocalyptic number.

It is an amenable number.

1112020111001 is a deficient number, since it is larger than the sum of its proper divisors (38345521099).

1112020111001 is an equidigital number, since it uses as much as digits as its factorization.

1112020111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38345521098.

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

Adding to 1112020111001 its reverse (1001110202111), we get a palindrome (2113130313112).

The spelling of 1112020111001 in words is "one trillion, one hundred twelve billion, twenty million, one hundred eleven thousand, one".