201020221102110 has 32 divisors (see below), whose sum is σ = 482454213230592. Its totient is φ = 53604760895520.

The previous prime is 201020221102093. The next prime is 201020221102153. The reversal of 201020221102110 is 11201122020102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201020221102110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36870174 + ... + 41969633.

It is an arithmetic number, because the mean of its divisors is an integer number (15076694163456).

Almost surely, 2^{201020221102110} is an apocalyptic number.

201020221102110 is an abundant number, since it is smaller than the sum of its proper divisors (281433992128482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201020221102110 is a wasteful number, since it uses less digits than its factorization.

201020221102110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78924808.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201020221102110 its reverse (11201122020102), we get a palindrome (212221343122212).

The spelling of 201020221102110 in words is "two hundred one trillion, twenty billion, two hundred twenty-one million, one hundred two thousand, one hundred ten".