20102210211101 has 4 divisors (see below), whose sum is σ = 20104240542204. Its totient is φ = 20100179880000.

The previous prime is 20102210211077. The next prime is 20102210211103. The reversal of 20102210211101 is 10111201220102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8266924551076 + 11835285660025 = 2875226^2 + 3440245^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102210211101 - 2⁶ = 20102210211037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102210211103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015150700 + ... + 1015170501.

It is an arithmetic number, because the mean of its divisors is an integer number (5026060135551).

Almost surely, 2^{20102210211101} is an apocalyptic number.

It is an amenable number.

20102210211101 is a deficient number, since it is larger than the sum of its proper divisors (2030331103).

20102210211101 is an equidigital number, since it uses as much as digits as its factorization.

20102210211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030331102.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20102210211101 its reverse (10111201220102), we get a palindrome (30213411431203).

The spelling of 20102210211101 in words is "twenty trillion, one hundred two billion, two hundred ten million, two hundred eleven thousand, one hundred one".