20111022110201 has 4 divisors (see below), whose sum is σ = 21939296847504. Its totient is φ = 18282747372900.

The previous prime is 20111022110089. The next prime is 20111022110219. The reversal of 20111022110201 is 10201122011102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20111022110201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111082110201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914137368635 + ... + 914137368656.

It is an arithmetic number, because the mean of its divisors is an integer number (5484824211876).

Almost surely, 2^{20111022110201} is an apocalyptic number.

It is an amenable number.

20111022110201 is a deficient number, since it is larger than the sum of its proper divisors (1828274737303).

20111022110201 is a wasteful number, since it uses less digits than its factorization.

20111022110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828274737302.

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

Adding to 20111022110201 its reverse (10201122011102), we get a palindrome (30312144121303).

Subtracting from 20111022110201 its reverse (10201122011102), we obtain a palindrome (9909900099099).

The spelling of 20111022110201 in words is "twenty trillion, one hundred eleven billion, twenty-two million, one hundred ten thousand, two hundred one".