1122201100001 has 4 divisors (see below), whose sum is σ = 1122206202900. Its totient is φ = 1122195997104.

The previous prime is 1122201099977. The next prime is 1122201100019. The reversal of 1122201100001 is 1000011022211.

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 756901740001 + 365299360000 = 870001^2 + 604400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122201100001 - 2³⁰ = 1121127358177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122201105001) 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, 2205986 + ... + 2666603.

It is an arithmetic number, because the mean of its divisors is an integer number (280551550725).

Almost surely, 2^{1122201100001} is an apocalyptic number.

It is an amenable number.

1122201100001 is a deficient number, since it is larger than the sum of its proper divisors (5102899).

1122201100001 is an equidigital number, since it uses as much as digits as its factorization.

1122201100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102898.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1122201100001 its reverse (1000011022211), we get a palindrome (2122212122212).

The spelling of 1122201100001 in words is "one trillion, one hundred twenty-two billion, two hundred one million, one hundred thousand, one".