342221233 has 2 divisors, whose sum is σ = 342221234. Its totient is φ = 342221232.

The previous prime is 342221213. The next prime is 342221249. The reversal of 342221233 is 332122243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296631729 + 45589504 = 17223^2 + 6752^2 .

It is an emirp because it is prime and its reverse (332122243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342221233 - 2⁹ = 342220721 is a prime.

It is not a weakly prime, because it can be changed into another prime (342221213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171110616 + 171110617.

It is an arithmetic number, because the mean of its divisors is an integer number (171110617).

Almost surely, 2^342221233 is an apocalyptic number.

It is an amenable number.

342221233 is a deficient number, since it is larger than the sum of its proper divisors (1).

342221233 is an equidigital number, since it uses as much as digits as its factorization.

342221233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 22.

The square root of 342221233 is about 18499.2224971754. Note that the first 3 decimals coincide. The cubic root of 342221233 is about 699.4698250814.

Adding to 342221233 its reverse (332122243), we get a palindrome (674343476).

The spelling of 342221233 in words is "three hundred forty-two million, two hundred twenty-one thousand, two hundred thirty-three".