22555651022321 has 16 divisors (see below), whose sum is σ = 23997615732288. Its totient is φ = 21126498624000.

The previous prime is 22555651022299. The next prime is 22555651022369. The reversal of 22555651022321 is 12322015655522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22555651022321 - 2¹⁸ = 22555650760177 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22555651052321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44409221 + ... + 44914253.

It is an arithmetic number, because the mean of its divisors is an integer number (1499850983268).

Almost surely, 2^{22555651022321} is an apocalyptic number.

It is an amenable number.

22555651022321 is a deficient number, since it is larger than the sum of its proper divisors (1441964709967).

22555651022321 is a wasteful number, since it uses less digits than its factorization.

22555651022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517712.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 22555651022321 its reverse (12322015655522), we get a palindrome (34877666677843).

The spelling of 22555651022321 in words is "twenty-two trillion, five hundred fifty-five billion, six hundred fifty-one million, twenty-two thousand, three hundred twenty-one".