1100022222001 has 4 divisors (see below), whose sum is σ = 1100091978612. Its totient is φ = 1099952465392.

The previous prime is 1100022221843. The next prime is 1100022222031. The reversal of 1100022222001 is 1002222200011.

It is a happy number.

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 814867290000 + 285154932001 = 902700^2 + 533999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100022222001 - 2³¹ = 1097874738353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100022222031) 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, 34854646 + ... + 34886191.

It is an arithmetic number, because the mean of its divisors is an integer number (275022994653).

Almost surely, 2^{1100022222001} is an apocalyptic number.

It is an amenable number.

1100022222001 is a deficient number, since it is larger than the sum of its proper divisors (69756611).

1100022222001 is an equidigital number, since it uses as much as digits as its factorization.

1100022222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69756610.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1100022222001 its reverse (1002222200011), we get a palindrome (2102244422012).

The spelling of 1100022222001 in words is "one trillion, one hundred billion, twenty-two million, two hundred twenty-two thousand, one".