10221472 has 48 divisors (see below), whose sum is σ = 21115080. Its totient is φ = 4866048.

The previous prime is 10221469. The next prime is 10221481. The reversal of 10221472 is 27412201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8976016 + 1245456 = 2996^2 + 1116^2 .

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, 105328 + ... + 105424.

Almost surely, 2^10221472 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 10221472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10557540).

10221472 is an abundant number, since it is smaller than the sum of its proper divisors (10893608).

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

10221472 is an equidigital number, since it uses as much as digits as its factorization.

10221472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 10221472 is about 3197.1036892788. The cubic root of 10221472 is about 217.0223596064.

Adding to 10221472 its reverse (27412201), we get a palindrome (37633673).

The spelling of 10221472 in words is "ten million, two hundred twenty-one thousand, four hundred seventy-two".