22564441202251 has 16 divisors (see below), whose sum is σ = 25185891438400. Its totient is φ = 20079852110208.

The previous prime is 22564441202239. The next prime is 22564441202297. The reversal of 22564441202251 is 15220214446522.

It is a cyclic number.

It is not a de Polignac number, because 22564441202251 - 2³³ = 22555851267659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22564441202651) 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 in 15 ways as a sum of consecutive naturals, for example, 215138031 + ... + 215242888.

It is an arithmetic number, because the mean of its divisors is an integer number (1574118214900).

Almost surely, 2^{22564441202251} is an apocalyptic number.

22564441202251 is a deficient number, since it is larger than the sum of its proper divisors (2621450236149).

22564441202251 is a wasteful number, since it uses less digits than its factorization.

22564441202251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430381078.

The product of its (nonzero) digits is 307200, while the sum is 40.

Adding to 22564441202251 its reverse (15220214446522), we get a palindrome (37784655648773).

The spelling of 22564441202251 in words is "twenty-two trillion, five hundred sixty-four billion, four hundred forty-one million, two hundred two thousand, two hundred fifty-one".