1100120201 has 16 divisors (see below), whose sum is σ = 1178283024. Its totient is φ = 1023504384.

The previous prime is 1100120183. The next prime is 1100120209. The reversal of 1100120201 is 1020210011.

It can be written as a sum of positive squares in 8 ways, for example, as 18696976 + 1081423225 = 4324^2 + 32885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100120201 - 2³⁰ = 26378377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100120209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253975 + ... + 1254851.

It is an arithmetic number, because the mean of its divisors is an integer number (73642689).

Almost surely, 2^1100120201 is an apocalyptic number.

It is an amenable number.

1100120201 is a deficient number, since it is larger than the sum of its proper divisors (78162823).

1100120201 is a wasteful number, since it uses less digits than its factorization.

1100120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1100120201 is about 33168.0599523095. The cubic root of 1100120201 is about 1032.3177144209.

Adding to 1100120201 its reverse (1020210011), we get a palindrome (2120330212).

The spelling of 1100120201 in words is "one billion, one hundred million, one hundred twenty thousand, two hundred one".