201102112101221 has 8 divisors (see below), whose sum is σ = 208748993644800. Its totient is φ = 193527712847520.

The previous prime is 201102112101173. The next prime is 201102112101229. The reversal of 201102112101221 is 122101211201102.

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 201102112101221 - 2⁶ = 201102112101157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201102112101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102112101229) 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 7 ways as a sum of consecutive naturals, for example, 18120566816 + ... + 18120577913.

It is an arithmetic number, because the mean of its divisors is an integer number (26093624205600).

Almost surely, 2^{201102112101221} is an apocalyptic number.

It is an amenable number.

201102112101221 is a deficient number, since it is larger than the sum of its proper divisors (7646881543579).

201102112101221 is a wasteful number, since it uses less digits than its factorization.

201102112101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36241144939.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201102112101221 its reverse (122101211201102), we get a palindrome (323203323302323).

The spelling of 201102112101221 in words is "two hundred one trillion, one hundred two billion, one hundred twelve million, one hundred one thousand, two hundred twenty-one".