1100221223201 has 4 divisors (see below), whose sum is σ = 1138159886100. Its totient is φ = 1062282560304.

The previous prime is 1100221223197. The next prime is 1100221223203. The reversal of 1100221223201 is 1023221220011.

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 938457187600 + 161764035601 = 968740^2 + 402199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100221223201 - 2² = 1100221223197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100221223201.

It is not an unprimeable number, because it can be changed into a prime (1100221223203) 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, 18969331406 + ... + 18969331463.

It is an arithmetic number, because the mean of its divisors is an integer number (284539971525).

Almost surely, 2^{1100221223201} is an apocalyptic number.

It is an amenable number.

1100221223201 is a deficient number, since it is larger than the sum of its proper divisors (37938662899).

1100221223201 is an equidigital number, since it uses as much as digits as its factorization.

1100221223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37938662898.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1100221223201 its reverse (1023221220011), we get a palindrome (2123442443212).

The spelling of 1100221223201 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred twenty-three thousand, two hundred one".