10021056172 has 48 divisors (see below), whose sum is σ = 18212594400. Its totient is φ = 4820774400.

The previous prime is 10021056163. The next prime is 10021056173. The reversal of 10021056172 is 27165012001.

10021056172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (10021056173) 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 15 ways as a sum of consecutive naturals, for example, 6765672 + ... + 6767152.

It is an arithmetic number, because the mean of its divisors is an integer number (379429050).

Almost surely, 2^10021056172 is an apocalyptic number.

It is an amenable number.

10021056172 is a deficient number, since it is larger than the sum of its proper divisors (8191538228).

10021056172 is a wasteful number, since it uses less digits than its factorization.

10021056172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

Adding to 10021056172 its reverse (27165012001), we get a palindrome (37186068173).

The spelling of 10021056172 in words is "ten billion, twenty-one million, fifty-six thousand, one hundred seventy-two".