10001225631 has 16 divisors (see below), whose sum is σ = 13919673600. Its totient is φ = 6375336000.

The previous prime is 10001225629. The next prime is 10001225657. The reversal of 10001225631 is 13652210001.

It is not a de Polignac number, because 10001225631 - 2¹ = 10001225629 is a prime.

It is a super-2 number, since 2×10001225631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001225598 and 10001225607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001220631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182920 + ... + 231218.

It is an arithmetic number, because the mean of its divisors is an integer number (869979600).

Almost surely, 2^10001225631 is an apocalyptic number.

10001225631 is a deficient number, since it is larger than the sum of its proper divisors (3918447969).

10001225631 is a wasteful number, since it uses less digits than its factorization.

10001225631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51326.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 10001225631 its reverse (13652210001), we get a palindrome (23653435632).

The spelling of 10001225631 in words is "ten billion, one million, two hundred twenty-five thousand, six hundred thirty-one".