221234411442 has 48 divisors (see below), whose sum is σ = 504592468128. Its totient is φ = 64125906240.

The previous prime is 221234411399. The next prime is 221234411443. The reversal of 221234411442 is 244114432122.

221234411442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221234411443) 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 23 ways as a sum of consecutive naturals, for example, 3133363 + ... + 3203190.

It is an arithmetic number, because the mean of its divisors is an integer number (10512343086).

Almost surely, 2^221234411442 is an apocalyptic number.

221234411442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221234411442 is an abundant number, since it is smaller than the sum of its proper divisors (283358056686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221234411442 is a wasteful number, since it uses less digits than its factorization.

221234411442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336615 (or 6336592 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

Adding to 221234411442 its reverse (244114432122), we get a palindrome (465348843564).

The spelling of 221234411442 in words is "two hundred twenty-one billion, two hundred thirty-four million, four hundred eleven thousand, four hundred forty-two".