1001197225 has 12 divisors (see below), whose sum is σ = 1418839744. Its totient is φ = 686535120.

The previous prime is 1001197207. The next prime is 1001197271. The reversal of 1001197225 is 5227911001.

It is not a de Polignac number, because 1001197225 - 2⁵ = 1001197193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001197193 and 1001197202.

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 11 ways as a sum of consecutive naturals, for example, 2860389 + ... + 2860738.

Almost surely, 2^1001197225 is an apocalyptic number.

It is an amenable number.

1001197225 is a deficient number, since it is larger than the sum of its proper divisors (417642519).

1001197225 is an equidigital number, since it uses as much as digits as its factorization.

1001197225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721144 (or 5721139 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 1001197225 is about 31641.7007286271. The cubic root of 1001197225 is about 1000.3989158450.

The spelling of 1001197225 in words is "one billion, one million, one hundred ninety-seven thousand, two hundred twenty-five".