342221 has 8 divisors (see below), whose sum is σ = 381024. Its totient is φ = 304720.

The previous prime is 342211. The next prime is 342233. The reversal of 342221 is 122243.

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

It is a cyclic number.

It is not a de Polignac number, because 342221 - 2¹⁸ = 80077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 342196 and 342205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342211) 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, 290 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (47628).

2³⁴²²²¹ is an apocalyptic number.

It is an amenable number.

342221 is a deficient number, since it is larger than the sum of its proper divisors (38803).

342221 is a wasteful number, since it uses less digits than its factorization.

342221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its digits is 96, while the sum is 14.

The square root of 342221 is about 584.9965811866. The cubic root of 342221 is about 69.9469666338.

Adding to 342221 its reverse (122243), we get a palindrome (464464).

It can be divided in two parts, 3422 and 21, that added together give a palindrome (3443).

The spelling of 342221 in words is "three hundred forty-two thousand, two hundred twenty-one", and thus it is an iban number.