352221 has 8 divisors (see below), whose sum is σ = 474240. Its totient is φ = 232512.

The previous prime is 352217. The next prime is 352229. The reversal of 352221 is 122253.

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

It is not a de Polignac number, because 352221 - 2² = 352217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 352221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352229) 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, 181 + ... + 858.

It is an arithmetic number, because the mean of its divisors is an integer number (59280).

2³⁵²²²¹ is an apocalyptic number.

It is an amenable number.

352221 is a deficient number, since it is larger than the sum of its proper divisors (122019).

352221 is a wasteful number, since it uses less digits than its factorization.

352221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its digits is 120, while the sum is 15.

The square root of 352221 is about 593.4820974553. The cubic root of 352221 is about 70.6217402625.

Adding to 352221 its reverse (122253), we get a palindrome (474474).

The spelling of 352221 in words is "three hundred fifty-two thousand, two hundred twenty-one".