10221524 has 12 divisors (see below), whose sum is σ = 17918964. Its totient is φ = 5101824.

The previous prime is 10221521. The next prime is 10221551. The reversal of 10221524 is 42512201.

It can be written as a sum of positive squares in 2 ways, for example, as 1281424 + 8940100 = 1132^2 + 2990^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794 + ... + 4590.

It is an arithmetic number, because the mean of its divisors is an integer number (1493247).

Almost surely, 2^10221524 is an apocalyptic number.

It is an amenable number.

10221524 is a deficient number, since it is larger than the sum of its proper divisors (7697440).

10221524 is a wasteful number, since it uses less digits than its factorization.

10221524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474 (or 4472 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 10221524 is about 3197.1118216290. Note that the first 3 decimals coincide. The cubic root of 10221524 is about 217.0227276272.

Adding to 10221524 its reverse (42512201), we get a palindrome (52733725).

The spelling of 10221524 in words is "ten million, two hundred twenty-one thousand, five hundred twenty-four".