9601221 has 8 divisors (see below), whose sum is σ = 14630464. Its totient is φ = 5486400.

The previous prime is 9601219. The next prime is 9601223. The reversal of 9601221 is 1221069.

It is an interprime number because it is at equal distance from previous prime (9601219) and next prime (9601223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9601221 - 2¹ = 9601219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 457201 = 9601221 / (9 + 6 + 0 + 1 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9601223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228580 + ... + 228621.

It is an arithmetic number, because the mean of its divisors is an integer number (1828808).

Almost surely, 2^9601221 is an apocalyptic number.

It is an amenable number.

9601221 is a deficient number, since it is larger than the sum of its proper divisors (5029243).

9601221 is a wasteful number, since it uses less digits than its factorization.

9601221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457211.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 9601221 is about 3098.5837087289. The cubic root of 9601221 is about 212.5407239137.

The spelling of 9601221 in words is "nine million, six hundred one thousand, two hundred twenty-one".