10221148 has 48 divisors (see below), whose sum is σ = 21954240. Its totient is φ = 4064256.

The previous prime is 10221091. The next prime is 10221149. The reversal of 10221148 is 84112201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51786 + ... + 51982.

It is an arithmetic number, because the mean of its divisors is an integer number (457380).

Almost surely, 2^10221148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10977120).

10221148 is an abundant number, since it is smaller than the sum of its proper divisors (11733092).

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

10221148 is a wasteful number, since it uses less digits than its factorization.

10221148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 10221148 is about 3197.0530180152. The cubic root of 10221148 is about 217.0200665255.

Adding to 10221148 its reverse (84112201), we get a palindrome (94333349).

The spelling of 10221148 in words is "ten million, two hundred twenty-one thousand, one hundred forty-eight".