10821172 has 12 divisors (see below), whose sum is σ = 18960480. Its totient is φ = 5403896.

The previous prime is 10821143. The next prime is 10821179. The reversal of 10821172 is 27112801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10821179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4479 + ... + 6457.

It is an arithmetic number, because the mean of its divisors is an integer number (1580040).

Almost surely, 2^10821172 is an apocalyptic number.

It is an amenable number.

10821172 is a deficient number, since it is larger than the sum of its proper divisors (8139308).

10821172 is a wasteful number, since it uses less digits than its factorization.

10821172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 10821172 is about 3289.5549851006. The cubic root of 10821172 is about 221.1862369588.

Adding to 10821172 its reverse (27112801), we get a palindrome (37933973).

The spelling of 10821172 in words is "ten million, eight hundred twenty-one thousand, one hundred seventy-two".