20110001020211 has 4 divisors (see below), whose sum is σ = 21292942256712. Its totient is φ = 18927059783712.

The previous prime is 20110001020129. The next prime is 20110001020217. The reversal of 20110001020211 is 11202010001102.

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 20110001020211 - 2²² = 20109996825907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110001020192 and 20110001020201.

It is not an unprimeable number, because it can be changed into a prime (20110001020217) 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, 591470618225 + ... + 591470618258.

It is an arithmetic number, because the mean of its divisors is an integer number (5323235564178).

Almost surely, 2^{20110001020211} is an apocalyptic number.

20110001020211 is a deficient number, since it is larger than the sum of its proper divisors (1182941236501).

20110001020211 is a wasteful number, since it uses less digits than its factorization.

20110001020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182941236500.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110001020211 its reverse (11202010001102), we get a palindrome (31312011021313).

The spelling of 20110001020211 in words is "twenty trillion, one hundred ten billion, one million, twenty thousand, two hundred eleven".