1100111201 has 12 divisors (see below), whose sum is σ = 1323851220. Its totient is φ = 910435680.

The previous prime is 1100111171. The next prime is 1100111213. The reversal of 1100111201 is 1021110011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 232867600 + 867243601 = 15260^2 + 29449^2 .

It is not a de Polignac number, because 1100111201 - 2³⁰ = 26369377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1100111231) 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 11 ways as a sum of consecutive naturals, for example, 385670 + ... + 388511.

It is an arithmetic number, because the mean of its divisors is an integer number (110320935).

Almost surely, 2^1100111201 is an apocalyptic number.

It is an amenable number.

1100111201 is a deficient number, since it is larger than the sum of its proper divisors (223740019).

1100111201 is an equidigital number, since it uses as much as digits as its factorization.

1100111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774224 (or 774217 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1100111201 is about 33167.9242793395. The cubic root of 1100111201 is about 1032.3148993089.

Adding to 1100111201 its reverse (1021110011), we get a palindrome (2121221212).

The spelling of 1100111201 in words is "one billion, one hundred million, one hundred eleven thousand, two hundred one".