242200221 has 8 divisors (see below), whose sum is σ = 323145984. Its totient is φ = 161360640.

The previous prime is 242200219. The next prime is 242200229. The reversal of 242200221 is 122002242.

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

It is not a de Polignac number, because 242200221 - 2¹ = 242200219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242200229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21060 + ... + 30461.

It is an arithmetic number, because the mean of its divisors is an integer number (40393248).

Almost surely, 2^242200221 is an apocalyptic number.

It is an amenable number.

242200221 is a deficient number, since it is larger than the sum of its proper divisors (80945763).

242200221 is a wasteful number, since it uses less digits than its factorization.

242200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53091.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 242200221 is about 15562.7832022425. The cubic root of 242200221 is about 623.3397823755.

Adding to 242200221 its reverse (122002242), we get a palindrome (364202463).

The spelling of 242200221 in words is "two hundred forty-two million, two hundred thousand, two hundred twenty-one".