20102101020211 has 4 divisors (see below), whose sum is σ = 22973829737392. Its totient is φ = 17230372303032.

The previous prime is 20102101020187. The next prime is 20102101020233. The reversal of 20102101020211 is 11202010120102.

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

It is not a de Polignac number, because 20102101020211 - 2²⁹ = 20101564149299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102101020191 and 20102101020200.

It is not an unprimeable number, because it can be changed into a prime (20102101020241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435864358580 + ... + 1435864358593.

It is an arithmetic number, because the mean of its divisors is an integer number (5743457434348).

Almost surely, 2^{20102101020211} is an apocalyptic number.

20102101020211 is a deficient number, since it is larger than the sum of its proper divisors (2871728717181).

20102101020211 is an equidigital number, since it uses as much as digits as its factorization.

20102101020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871728717180.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20102101020211 its reverse (11202010120102), we get a palindrome (31304111140313).

The spelling of 20102101020211 in words is "twenty trillion, one hundred two billion, one hundred one million, twenty thousand, two hundred eleven".