202220100221 has 16 divisors (see below), whose sum is σ = 214504357824. Its totient is φ = 189979409664.

The previous prime is 202220100191. The next prime is 202220100227. The reversal of 202220100221 is 122001022202.

It is a de Polignac number, because none of the positive numbers 2^k-202220100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220100196 and 202220100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220100227) 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, 23611286 + ... + 23619848.

It is an arithmetic number, because the mean of its divisors is an integer number (13406522364).

Almost surely, 2^202220100221 is an apocalyptic number.

It is an amenable number.

202220100221 is a deficient number, since it is larger than the sum of its proper divisors (12284257603).

202220100221 is a wasteful number, since it uses less digits than its factorization.

202220100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202220100221 its reverse (122001022202), we get a palindrome (324221122423).

The spelling of 202220100221 in words is "two hundred two billion, two hundred twenty million, one hundred thousand, two hundred twenty-one".