10221529 has 4 divisors (see below), whose sum is σ = 10229220. Its totient is φ = 10213840.

The previous prime is 10221521. The next prime is 10221551. The reversal of 10221529 is 92512201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 931225 + 9290304 = 965^2 + 3048^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221529 - 2³ = 10221521 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282 + ... + 4699.

It is an arithmetic number, because the mean of its divisors is an integer number (2557305).

Almost surely, 2^10221529 is an apocalyptic number.

It is an amenable number.

10221529 is a deficient number, since it is larger than the sum of its proper divisors (7691).

10221529 is an equidigital number, since it uses as much as digits as its factorization.

10221529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 10221529 is about 3197.1126035847. The cubic root of 10221529 is about 217.0227630138.

The spelling of 10221529 in words is "ten million, two hundred twenty-one thousand, five hundred twenty-nine".