22245540304221 has 48 divisors (see below), whose sum is σ = 35541777246976. Its totient is φ = 13318692271488.

The previous prime is 22245540304189. The next prime is 22245540304291. The reversal of 22245540304221 is 12240304554222.

22245540304221 is a `hidden beast` number, since 2 + 2 + 2 + 45 + 540 + 30 + 42 + 2 + 1 = 666.

It is not a de Polignac number, because 22245540304221 - 2⁵ = 22245540304189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22245540304291) 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 47 ways as a sum of consecutive naturals, for example, 68335386 + ... + 68660148.

Almost surely, 2^{22245540304221} is an apocalyptic number.

It is an amenable number.

22245540304221 is a deficient number, since it is larger than the sum of its proper divisors (13296236942755).

22245540304221 is a wasteful number, since it uses less digits than its factorization.

22245540304221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340642 (or 340639 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 22245540304221 its reverse (12240304554222), we get a palindrome (34485844858443).

The spelling of 22245540304221 in words is "twenty-two trillion, two hundred forty-five billion, five hundred forty million, three hundred four thousand, two hundred twenty-one".