20222202100221 has 24 divisors (see below), whose sum is σ = 33739716875904. Its totient is φ = 11534945938560.

The previous prime is 20222202100189. The next prime is 20222202100223. The reversal of 20222202100221 is 12200120222202.

20222202100221 is a `hidden beast` number, since 20 + 222 + 202 + 1 + 0 + 0 + 221 = 666.

It is not a de Polignac number, because 20222202100221 - 2⁵ = 20222202100189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20222202100194 and 20222202100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222202100223) 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 23 ways as a sum of consecutive naturals, for example, 6007782661 + ... + 6007786026.

It is an arithmetic number, because the mean of its divisors is an integer number (1405821536496).

Almost surely, 2^{20222202100221} is an apocalyptic number.

It is an amenable number.

20222202100221 is a deficient number, since it is larger than the sum of its proper divisors (13517514775683).

20222202100221 is a wasteful number, since it uses less digits than its factorization.

20222202100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12015568721 (or 12015568718 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20222202100221 its reverse (12200120222202), we get a palindrome (32422322322423).

The spelling of 20222202100221 in words is "twenty trillion, two hundred twenty-two billion, two hundred two million, one hundred thousand, two hundred twenty-one".