10221530 has 32 divisors (see below), whose sum is σ = 20547648. Its totient is φ = 3628800.

The previous prime is 10221521. The next prime is 10221551. The reversal of 10221530 is 3512201.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3650 + ... + 5810.

It is an arithmetic number, because the mean of its divisors is an integer number (642114).

Almost surely, 2^10221530 is an apocalyptic number.

10221530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221530 is an abundant number, since it is smaller than the sum of its proper divisors (10326118).

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

10221530 is a wasteful number, since it uses less digits than its factorization.

10221530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 10221530 is about 3197.1127599758. The cubic root of 10221530 is about 217.0227700911.

Adding to 10221530 its reverse (3512201), we get a palindrome (13733731).

It can be divided in two parts, 1022 and 1530, that added together give a palindrome (2552).

The spelling of 10221530 in words is "ten million, two hundred twenty-one thousand, five hundred thirty".