1112211121201 has 4 divisors (see below), whose sum is σ = 1123677215332. Its totient is φ = 1100745027072.

The previous prime is 1112211121157. The next prime is 1112211121213. The reversal of 1112211121201 is 1021211122111.

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 520419402801 + 591791718400 = 721401^2 + 769280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112211121201 - 2²⁷ = 1112076903473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112211221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5733046920 + ... + 5733047113.

It is an arithmetic number, because the mean of its divisors is an integer number (280919303833).

Almost surely, 2^{1112211121201} is an apocalyptic number.

It is an amenable number.

1112211121201 is a deficient number, since it is larger than the sum of its proper divisors (11466094131).

1112211121201 is an equidigital number, since it uses as much as digits as its factorization.

1112211121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11466094130.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1112211121201 its reverse (1021211122111), we get a palindrome (2133422243312).

The spelling of 1112211121201 in words is "one trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-one thousand, two hundred one".