22153321242 has 96 divisors (see below), whose sum is σ = 52526492928. Its totient is φ = 6706706688.

The previous prime is 22153321213. The next prime is 22153321243. The reversal of 22153321242 is 24212335122.

22153321242 is a `hidden beast` number, since 2 + 2 + 1 + 533 + 2 + 124 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (22153321243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8317603 + ... + 8320265.

It is an arithmetic number, because the mean of its divisors is an integer number (547150968).

Almost surely, 2^22153321242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22153321242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26263246464).

22153321242 is an abundant number, since it is smaller than the sum of its proper divisors (30373171686).

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

22153321242 is a wasteful number, since it uses less digits than its factorization.

22153321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3241 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 22153321242 its reverse (24212335122), we get a palindrome (46365656364).

The spelling of 22153321242 in words is "twenty-two billion, one hundred fifty-three million, three hundred twenty-one thousand, two hundred forty-two".