1001113225 has 48 divisors (see below), whose sum is σ = 1478794240. Its totient is φ = 657849600.

The previous prime is 1001113213. The next prime is 1001113241. The reversal of 1001113225 is 5223111001.

It is not a de Polignac number, because 1001113225 - 2¹³ = 1001105033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001113199 and 1001113208.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 590479 + ... + 592171.

Almost surely, 2^1001113225 is an apocalyptic number.

It is an amenable number.

1001113225 is a deficient number, since it is larger than the sum of its proper divisors (477681015).

1001113225 is a wasteful number, since it uses less digits than its factorization.

1001113225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1001113225 is about 31640.3733385053. The cubic root of 1001113225 is about 1000.3709373884.

Adding to 1001113225 its reverse (5223111001), we get a palindrome (6224224226).

The spelling of 1001113225 in words is "one billion, one million, one hundred thirteen thousand, two hundred twenty-five".