22281449224329 has 27 divisors (see below), whose sum is σ = 32434573183597. Its totient is φ = 14739680599800.

The previous prime is 22281449224303. The next prime is 22281449224337. The reversal of 22281449224329 is 92342294418222.

The square root of 22281449224329 is 4720323.

It is a perfect power (a square), and thus also a powerful number.

22281449224329 is a `hidden beast` number, since 2 + 2 + 2 + 81 + 44 + 92 + 2 + 432 + 9 = 666.

It is not a de Polignac number, because 22281449224329 - 2¹⁷ = 22281449093257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22281449224829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1855080934 + ... + 1855092944.

Almost surely, 2^{22281449224329} is an apocalyptic number.

22281449224329 is the 4720323-rd square number.

22281449224329 is the 2360162-nd centered octagonal number.

It is an amenable number.

22281449224329 is a deficient number, since it is larger than the sum of its proper divisors (10153123959268).

22281449224329 is an frugal number, since it uses more digits than its factorization.

22281449224329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24290 (or 12145 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The spelling of 22281449224329 in words is "twenty-two trillion, two hundred eighty-one billion, four hundred forty-nine million, two hundred twenty-four thousand, three hundred twenty-nine".