221333411242 has 8 divisors (see below), whose sum is σ = 351529535556. Its totient is φ = 104156899392.

The previous prime is 221333411129. The next prime is 221333411249. The reversal of 221333411242 is 242114333122.

It can be written as a sum of positive squares in 2 ways, for example, as 221126598081 + 206813161 = 470241^2 + 14381^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 221333411242.

It is not an unprimeable number, because it can be changed into a prime (221333411249) 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, 3254903073 + ... + 3254903140.

Almost surely, 2^221333411242 is an apocalyptic number.

221333411242 is a deficient number, since it is larger than the sum of its proper divisors (130196124314).

221333411242 is a wasteful number, since it uses less digits than its factorization.

221333411242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509806232.

The product of its digits is 6912, while the sum is 28.

Adding to 221333411242 its reverse (242114333122), we get a palindrome (463447744364).

The spelling of 221333411242 in words is "two hundred twenty-one billion, three hundred thirty-three million, four hundred eleven thousand, two hundred forty-two".