201221101100311 has 8 divisors (see below), whose sum is σ = 202089944959344. Its totient is φ = 200352301976640.

The previous prime is 201221101100293. The next prime is 201221101100353. The reversal of 201221101100311 is 113001101122102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201221101100311 - 2²⁷ = 201220966882583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221101100611) 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, 2152645 + ... + 20176126.

It is an arithmetic number, because the mean of its divisors is an integer number (25261243119918).

Almost surely, 2^{201221101100311} is an apocalyptic number.

201221101100311 is a deficient number, since it is larger than the sum of its proper divisors (868843859033).

201221101100311 is a wasteful number, since it uses less digits than its factorization.

201221101100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22367681.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 201221101100311 its reverse (113001101122102), we get a palindrome (314222202222413).

The spelling of 201221101100311 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred one million, one hundred thousand, three hundred eleven".