201122200011221 has 32 divisors (see below), whose sum is σ = 220662704640000. Its totient is φ = 182577451170240.

The previous prime is 201122200011199. The next prime is 201122200011263. The reversal of 201122200011221 is 122110002221102.

It is a cyclic number.

It is not a de Polignac number, because 201122200011221 - 2¹⁰ = 201122200010197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201122200011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122200013221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213289460 + ... + 214230338.

It is an arithmetic number, because the mean of its divisors is an integer number (6895709520000).

Almost surely, 2^{201122200011221} is an apocalyptic number.

It is an amenable number.

201122200011221 is a deficient number, since it is larger than the sum of its proper divisors (19540504628779).

201122200011221 is a wasteful number, since it uses less digits than its factorization.

201122200011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943857.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201122200011221 its reverse (122110002221102), we get a palindrome (323232202232323).

The spelling of 201122200011221 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred million, eleven thousand, two hundred twenty-one".