10221844 has 24 divisors (see below), whose sum is σ = 18825408. Its totient is φ = 4847040.

The previous prime is 10221803. The next prime is 10221853. The reversal of 10221844 is 44812201.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 12199 + ... + 13009.

It is an arithmetic number, because the mean of its divisors is an integer number (784392).

Almost surely, 2^10221844 is an apocalyptic number.

It is an amenable number.

10221844 is a deficient number, since it is larger than the sum of its proper divisors (8603564).

10221844 is a wasteful number, since it uses less digits than its factorization.

10221844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 10221844 is about 3197.1618664059. The cubic root of 10221844 is about 217.0249923433.

The spelling of 10221844 in words is "ten million, two hundred twenty-one thousand, eight hundred forty-four".