10001187225 has 72 divisors (see below), whose sum is σ = 19506489600. Its totient is φ = 4878921600.

The previous prime is 10001187197. The next prime is 10001187281. The reversal of 10001187225 is 52278110001.

It is not a de Polignac number, because 10001187225 - 2¹⁰ = 10001186201 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 83640 + ... + 164310.

Almost surely, 2^10001187225 is an apocalyptic number.

10001187225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10001187225 is a deficient number, since it is larger than the sum of its proper divisors (9505302375).

10001187225 is a wasteful number, since it uses less digits than its factorization.

10001187225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80735 (or 80727 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

Adding to 10001187225 its reverse (52278110001), we get a palindrome (62279297226).

The spelling of 10001187225 in words is "ten billion, one million, one hundred eighty-seven thousand, two hundred twenty-five".