22135344452 has 24 divisors (see below), whose sum is σ = 42085795416. Its totient is φ = 10125900288.

The previous prime is 22135344421. The next prime is 22135344467. The reversal of 22135344452 is 25444353122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 697699396 + 21437645056 = 26414^2 + 146416^2 .

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 7 ways as a sum of consecutive naturals, for example, 1877663 + ... + 1889414.

It is an arithmetic number, because the mean of its divisors is an integer number (1753574809).

Almost surely, 2^22135344452 is an apocalyptic number.

It is an amenable number.

22135344452 is a deficient number, since it is larger than the sum of its proper divisors (19950450964).

22135344452 is a wasteful number, since it uses less digits than its factorization.

22135344452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767207 (or 3767205 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

Adding to 22135344452 its reverse (25444353122), we get a palindrome (47579697574).

The spelling of 22135344452 in words is "twenty-two billion, one hundred thirty-five million, three hundred forty-four thousand, four hundred fifty-two".