9952221 has 16 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 6429360.

The previous prime is 9952213. The next prime is 9952253. The reversal of 9952221 is 1222599.

It is not a de Polignac number, because 9952221 - 2³ = 9952213 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9952121) 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 15 ways as a sum of consecutive naturals, for example, 22876 + ... + 23306.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^9952221 is an apocalyptic number.

It is an amenable number.

9952221 is a deficient number, since it is larger than the sum of its proper divisors (3733539).

9952221 is a wasteful number, since it uses less digits than its factorization.

9952221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its digits is 3240, while the sum is 30.

The square root of 9952221 is about 3154.7140916413. The cubic root of 9952221 is about 215.0997986296.

The spelling of 9952221 in words is "nine million, nine hundred fifty-two thousand, two hundred twenty-one".