20102221212201 has 40 divisors (see below), whose sum is σ = 30093327264000. Its totient is φ = 13372909684992.

The previous prime is 20102221212133. The next prime is 20102221212217. The reversal of 20102221212201 is 10221212220102.

It is a happy number.

20102221212201 is a `hidden beast` number, since 20 + 10 + 2 + 221 + 212 + 201 = 666.

It is not a de Polignac number, because 20102221212201 - 2¹¹ = 20102221210153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20102221212221) 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 39 ways as a sum of consecutive naturals, for example, 78014425 + ... + 78271673.

It is an arithmetic number, because the mean of its divisors is an integer number (752333181600).

Almost surely, 2^{20102221212201} is an apocalyptic number.

It is an amenable number.

20102221212201 is a deficient number, since it is larger than the sum of its proper divisors (9991106051799).

20102221212201 is a wasteful number, since it uses less digits than its factorization.

20102221212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259315 (or 259306 counting only the distinct ones).

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

Adding to 20102221212201 its reverse (10221212220102), we get a palindrome (30323433432303).

The spelling of 20102221212201 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, two hundred one".