242103221 has 8 divisors (see below), whose sum is σ = 253065600. Its totient is φ = 231177232.

The previous prime is 242103209. The next prime is 242103233. The reversal of 242103221 is 122301242.

It is an interprime number because it is at equal distance from previous prime (242103209) and next prime (242103233).

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

It is not a de Polignac number, because 242103221 - 2¹⁰ = 242102197 is a prime.

It is a super-2 number, since 2×242103221² = 117227939237149682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242103221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242103271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4991 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (31633200).

Almost surely, 2^242103221 is an apocalyptic number.

It is an amenable number.

242103221 is a deficient number, since it is larger than the sum of its proper divisors (10962379).

242103221 is a wasteful number, since it uses less digits than its factorization.

242103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18195.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 242103221 is about 15559.6664810014. Note that the first 3 decimals coincide. The cubic root of 242103221 is about 623.2565564226.

Adding to 242103221 its reverse (122301242), we get a palindrome (364404463).

The spelling of 242103221 in words is "two hundred forty-two million, one hundred three thousand, two hundred twenty-one".