22255311321 has 12 divisors (see below), whose sum is σ = 32148060672. Its totient is φ = 14836181976.

The previous prime is 22255311307. The next prime is 22255311343. The reversal of 22255311321 is 12311355222.

22255311321 is a `hidden beast` number, since 2 + 2 + 25 + 5 + 311 + 321 = 666.

It is not a de Polignac number, because 22255311321 - 2⁹ = 22255310809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22255311391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212560 + ... + 299486.

It is an arithmetic number, because the mean of its divisors is an integer number (2679005056).

Almost surely, 2^22255311321 is an apocalyptic number.

It is an amenable number.

22255311321 is a deficient number, since it is larger than the sum of its proper divisors (9892749351).

22255311321 is a wasteful number, since it uses less digits than its factorization.

22255311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115380 (or 115377 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

Adding to 22255311321 its reverse (12311355222), we get a palindrome (34566666543).

The spelling of 22255311321 in words is "twenty-two billion, two hundred fifty-five million, three hundred eleven thousand, three hundred twenty-one".