242021210 has 8 divisors (see below), whose sum is σ = 435638196. Its totient is φ = 96808480.

The previous prime is 242021209. The next prime is 242021239. The reversal of 242021210 is 12120242.

It can be written as a sum of positive squares in 2 ways, for example, as 242020249 + 961 = 15557^2 + 31^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12101051 + ... + 12101070.

Almost surely, 2^242021210 is an apocalyptic number.

242021210 is a deficient number, since it is larger than the sum of its proper divisors (193616986).

242021210 is a wasteful number, since it uses less digits than its factorization.

242021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202128.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 242021210 is about 15557.0308863870. The cubic root of 242021210 is about 623.1861736801.

Adding to 242021210 its reverse (12120242), we get a palindrome (254141452).

The spelling of 242021210 in words is "two hundred forty-two million, twenty-one thousand, two hundred ten".