20102010211 has 4 divisors (see below), whose sum is σ = 20431551424. Its totient is φ = 19772469000.

The previous prime is 20102010209. The next prime is 20102010259. The reversal of 20102010211 is 11201020102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102010211 - 2¹ = 20102010209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102016211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164770515 + ... + 164770636.

It is an arithmetic number, because the mean of its divisors is an integer number (5107887856).

Almost surely, 2^20102010211 is an apocalyptic number.

20102010211 is a deficient number, since it is larger than the sum of its proper divisors (329541213).

20102010211 is an equidigital number, since it uses as much as digits as its factorization.

20102010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329541212.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20102010211 its reverse (11201020102), we get a palindrome (31303030313).

It can be divided in two parts, 201020102 and 11, that multiplied together give a palindrome (2211221122).

The spelling of 20102010211 in words is "twenty billion, one hundred two million, ten thousand, two hundred eleven".