242221333 has 4 divisors (see below), whose sum is σ = 242365600. Its totient is φ = 242077068.

The previous prime is 242221313. The next prime is 242221361. The reversal of 242221333 is 333122242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242221333 - 2¹³ = 242213141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242221313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69585 + ... + 72982.

It is an arithmetic number, because the mean of its divisors is an integer number (60591400).

Almost surely, 2^242221333 is an apocalyptic number.

It is an amenable number.

242221333 is a deficient number, since it is larger than the sum of its proper divisors (144267).

242221333 is a wasteful number, since it uses less digits than its factorization.

242221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144266.

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

The square root of 242221333 is about 15563.4614723075. The cubic root of 242221333 is about 623.3578935166.

Adding to 242221333 its reverse (333122242), we get a palindrome (575343575).

Subtracting 242221333 from its reverse (333122242), we obtain a palindrome (90900909).

The spelling of 242221333 in words is "two hundred forty-two million, two hundred twenty-one thousand, three hundred thirty-three".