201220022210221 has 8 divisors (see below), whose sum is σ = 229966778030400. Its totient is φ = 172473525980448.

The previous prime is 201220022210153. The next prime is 201220022210227. The reversal of 201220022210221 is 122012220022102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201220022210221 - 2²³ = 201220013821613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220022210227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63233731 + ... + 66339616.

It is an arithmetic number, because the mean of its divisors is an integer number (28745847253800).

Almost surely, 2^{201220022210221} is an apocalyptic number.

It is an amenable number.

201220022210221 is a deficient number, since it is larger than the sum of its proper divisors (28746755820179).

201220022210221 is a wasteful number, since it uses less digits than its factorization.

201220022210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129795203.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201220022210221 its reverse (122012220022102), we get a palindrome (323232242232323).

The spelling of 201220022210221 in words is "two hundred one trillion, two hundred twenty billion, twenty-two million, two hundred ten thousand, two hundred twenty-one".