10221590 has 16 divisors (see below), whose sum is σ = 19481472. Its totient is φ = 3848064.

The previous prime is 10221571. The next prime is 10221619. The reversal of 10221590 is 9512201.

It is a super-4 number, since 4×10221590⁴ (a number of 29 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29894 + ... + 30233.

It is an arithmetic number, because the mean of its divisors is an integer number (1217592).

Almost surely, 2^10221590 is an apocalyptic number.

10221590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221590 is a deficient number, since it is larger than the sum of its proper divisors (9259882).

10221590 is a wasteful number, since it uses less digits than its factorization.

10221590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60151.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 10221590 is about 3197.1221434284. The cubic root of 10221590 is about 217.0231947288.

Adding to 10221590 its reverse (9512201), we get a palindrome (19733791).

The spelling of 10221590 in words is "ten million, two hundred twenty-one thousand, five hundred ninety".