201111122202101 has 8 divisors (see below), whose sum is σ = 203943952555200. Its totient is φ = 198278299608480.

The previous prime is 201111122202073. The next prime is 201111122202119. The reversal of 201111122202101 is 101202221111102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201111122202101 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 201111122202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111122802101) 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, 67791185 + ... + 70695593.

It is an arithmetic number, because the mean of its divisors is an integer number (25492994069400).

Almost surely, 2^{201111122202101} is an apocalyptic number.

It is an amenable number.

201111122202101 is a deficient number, since it is larger than the sum of its proper divisors (2832830353099).

201111122202101 is an equidigital number, since it uses as much as digits as its factorization.

201111122202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879739.

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

Adding to 201111122202101 its reverse (101202221111102), we get a palindrome (302313343313203).

The spelling of 201111122202101 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-two million, two hundred two thousand, one hundred one".