22145444324 has 6 divisors (see below), whose sum is σ = 38754527574. Its totient is φ = 11072722160.

The previous prime is 22145444287. The next prime is 22145444329. The reversal of 22145444324 is 42344454122.

It can be written as a sum of positive squares in only one way, i.e., 16171700224 + 5973744100 = 127168^2 + 77290^2 .

It is not an unprimeable number, because it can be changed into a prime (22145444329) 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 as a sum of consecutive naturals, namely, 2768180537 + ... + 2768180544.

It is an arithmetic number, because the mean of its divisors is an integer number (6459087929).

Almost surely, 2^22145444324 is an apocalyptic number.

It is an amenable number.

22145444324 is a deficient number, since it is larger than the sum of its proper divisors (16609083250).

22145444324 is a wasteful number, since it uses less digits than its factorization.

22145444324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536361085 (or 5536361083 counting only the distinct ones).

The product of its digits is 122880, while the sum is 35.

Adding to 22145444324 its reverse (42344454122), we get a palindrome (64489898446).

The spelling of 22145444324 in words is "twenty-two billion, one hundred forty-five million, four hundred forty-four thousand, three hundred twenty-four".