201000020022221 has 16 divisors (see below), whose sum is σ = 229865447566080. Its totient is φ = 172172391175680.

The previous prime is 201000020022173. The next prime is 201000020022227. The reversal of 201000020022221 is 122220020000102.

It is not a de Polignac number, because 201000020022221 - 2⁶ = 201000020022157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201000020022196 and 201000020022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000020022227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174748931 + ... + 175895391.

It is an arithmetic number, because the mean of its divisors is an integer number (14366590472880).

Almost surely, 2^{201000020022221} is an apocalyptic number.

It is an amenable number.

201000020022221 is a deficient number, since it is larger than the sum of its proper divisors (28865427543859).

201000020022221 is a wasteful number, since it uses less digits than its factorization.

201000020022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162924.

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

Adding to 201000020022221 its reverse (122220020000102), we get a palindrome (323220040022323).

The spelling of 201000020022221 in words is "two hundred one trillion, twenty million, twenty-two thousand, two hundred twenty-one".