1100022201 has 10 divisors (see below), whose sum is σ = 1643243162. Its totient is φ = 733348080.

The previous prime is 1100022199. The next prime is 1100022299. The reversal of 1100022201 is 1022200011.

It can be written as a sum of positive squares in only one way, i.e., 1099917225 + 104976 = 33165^2 + 324^2 .

It is not a de Polignac number, because 1100022201 - 2¹ = 1100022199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100022601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6790180 + ... + 6790341.

Almost surely, 2^1100022201 is an apocalyptic number.

It is an amenable number.

1100022201 is a deficient number, since it is larger than the sum of its proper divisors (543220961).

1100022201 is an equidigital number, since it uses as much as digits as its factorization.

1100022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13580533 (or 13580524 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1100022201 is about 33166.5825945333. The cubic root of 1100022201 is about 1032.2870601523.

Adding to 1100022201 its reverse (1022200011), we get a palindrome (2122222212).

The spelling of 1100022201 in words is "one billion, one hundred million, twenty-two thousand, two hundred one".