221242323223422 has 160 divisors (see below), whose sum is σ = 504128072346624. Its totient is φ = 72511440019200.

The previous prime is 221242323223421. The next prime is 221242323223447. The reversal of 221242323223422 is 224322323242122.

221242323223422 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 4 + 2 + 3 + 2 + 3 + 223 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221242323223421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7594723797 + ... + 7594752927.

Almost surely, 2^{221242323223422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221242323223422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252064036173312).

221242323223422 is an abundant number, since it is smaller than the sum of its proper divisors (282885749123202).

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

221242323223422 is a wasteful number, since it uses less digits than its factorization.

221242323223422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32556 (or 32547 counting only the distinct ones).

The product of its digits is 221184, while the sum is 36.

Adding to 221242323223422 its reverse (224322323242122), we get a palindrome (445564646465544).

The spelling of 221242323223422 in words is "two hundred twenty-one trillion, two hundred forty-two billion, three hundred twenty-three million, two hundred twenty-three thousand, four hundred twenty-two".