201203223100221 has 16 divisors (see below), whose sum is σ = 269891260619904. Its totient is φ = 133325416464384.

The previous prime is 201203223100207. The next prime is 201203223100301. The reversal of 201203223100221 is 122001322302102.

It is not a de Polignac number, because 201203223100221 - 2³⁹ = 200653467286333 is a prime.

It is a super-2 number, since 2×201203223100221² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201203223150221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572320 + ... + 20068233.

It is an arithmetic number, because the mean of its divisors is an integer number (16868203788744).

Almost surely, 2^{201203223100221} is an apocalyptic number.

It is an amenable number.

201203223100221 is a deficient number, since it is larger than the sum of its proper divisors (68688037519683).

201203223100221 is a wasteful number, since it uses less digits than its factorization.

201203223100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20660180.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 201203223100221 its reverse (122001322302102), we get a palindrome (323204545402323).

The spelling of 201203223100221 in words is "two hundred one trillion, two hundred three billion, two hundred twenty-three million, one hundred thousand, two hundred twenty-one".