10171220 has 24 divisors (see below), whose sum is σ = 21858144. Its totient is φ = 3973536.

The previous prime is 10171211. The next prime is 10171237. The reversal of 10171220 is 2217101.

10171220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10171195 and 10171204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5054 + ... + 6773.

It is an arithmetic number, because the mean of its divisors is an integer number (910756).

Almost surely, 2^10171220 is an apocalyptic number.

10171220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10171220 is an abundant number, since it is smaller than the sum of its proper divisors (11686924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10171220 is a wasteful number, since it uses less digits than its factorization.

10171220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11879 (or 11877 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 10171220 is about 3189.2350179941. The cubic root of 10171220 is about 216.6661249165. Note that the first 3 decimals are identical.

Adding to 10171220 its reverse (2217101), we get a palindrome (12388321).

The spelling of 10171220 in words is "ten million, one hundred seventy-one thousand, two hundred twenty".