20221102210221 has 12 divisors (see below), whose sum is σ = 31863554998080. Its totient is φ = 12255213460680.

The previous prime is 20221102210213. The next prime is 20221102210247. The reversal of 20221102210221 is 12201220112202.

It is a happy number.

20221102210221 is a `hidden beast` number, since 2 + 0 + 221 + 1 + 0 + 221 + 0 + 221 = 666.

It is not a de Polignac number, because 20221102210221 - 2³ = 20221102210213 is a prime.

It is a super-2 number, since 2×20221102210221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20221102210194 and 20221102210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221102210021) 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 11 ways as a sum of consecutive naturals, for example, 102126778741 + ... + 102126778938.

It is an arithmetic number, because the mean of its divisors is an integer number (2655296249840).

Almost surely, 2^{20221102210221} is an apocalyptic number.

It is an amenable number.

20221102210221 is a deficient number, since it is larger than the sum of its proper divisors (11642452787859).

20221102210221 is a wasteful number, since it uses less digits than its factorization.

20221102210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204253557696 (or 204253557693 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20221102210221 its reverse (12201220112202), we get a palindrome (32422322322423).

The spelling of 20221102210221 in words is "twenty trillion, two hundred twenty-one billion, one hundred two million, two hundred ten thousand, two hundred twenty-one".