22225144242 has 64 divisors (see below), whose sum is σ = 53876551680. Its totient is φ = 5966735616.

The previous prime is 22225144219. The next prime is 22225144289. The reversal of 22225144242 is 24244152222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416823 + ... + 467109.

It is an arithmetic number, because the mean of its divisors is an integer number (841821120).

Almost surely, 2^22225144242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22225144242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26938275840).

22225144242 is an abundant number, since it is smaller than the sum of its proper divisors (31651407438).

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

22225144242 is a wasteful number, since it uses less digits than its factorization.

22225144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50935.

The product of its digits is 20480, while the sum is 30.

Adding to 22225144242 its reverse (24244152222), we get a palindrome (46469296464).

The spelling of 22225144242 in words is "twenty-two billion, two hundred twenty-five million, one hundred forty-four thousand, two hundred forty-two".