1100120112001 has 4 divisors (see below), whose sum is σ = 1100968316932. Its totient is φ = 1099271907072.

The previous prime is 1100120111999. The next prime is 1100120112011. The reversal of 1100120112001 is 1002110210011.

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 541813766400 + 558306345601 = 736080^2 + 747199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100120112001 - 2¹ = 1100120111999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100120112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424100520 + ... + 424103113.

It is an arithmetic number, because the mean of its divisors is an integer number (275242079233).

Almost surely, 2^{1100120112001} is an apocalyptic number.

It is an amenable number.

1100120112001 is a deficient number, since it is larger than the sum of its proper divisors (848204931).

1100120112001 is an equidigital number, since it uses as much as digits as its factorization.

1100120112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848204930.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1100120112001 its reverse (1002110210011), we get a palindrome (2102230322012).

It can be divided in two parts, 1100120 and 112001, that added together give a palindrome (1212121).

The spelling of 1100120112001 in words is "one trillion, one hundred billion, one hundred twenty million, one hundred twelve thousand, one".