1001112205 has 8 divisors (see below), whose sum is σ = 1202600952. Its totient is φ = 800045568.

The previous prime is 1001112199. The next prime is 1001112209. The reversal of 1001112205 is 5022111001.

It can be written as a sum of positive squares in 4 ways, for example, as 102191881 + 898920324 = 10109^2 + 29982^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001112205 - 2²¹ = 999015053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001112209) 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 7 ways as a sum of consecutive naturals, for example, 100284 + ... + 109813.

It is an arithmetic number, because the mean of its divisors is an integer number (150325119).

Almost surely, 2^1001112205 is an apocalyptic number.

It is an amenable number.

1001112205 is a deficient number, since it is larger than the sum of its proper divisors (201488747).

1001112205 is an equidigital number, since it uses as much as digits as its factorization.

1001112205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211055.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1001112205 is about 31640.3572198545. The cubic root of 1001112205 is about 1000.3705976404.

Adding to 1001112205 its reverse (5022111001), we get a palindrome (6023223206).

The spelling of 1001112205 in words is "one billion, one million, one hundred twelve thousand, two hundred five".