20110201102111 has 16 divisors (see below), whose sum is σ = 20994889006080. Its totient is φ = 19226375958240.

The previous prime is 20110201102049. The next prime is 20110201102129. The reversal of 20110201102111 is 11120110201102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20110201102111 - 2¹⁷ = 20110200971039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110201102091 and 20110201102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110201102711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773367036 + ... + 773393038.

It is an arithmetic number, because the mean of its divisors is an integer number (1312180562880).

Almost surely, 2^{20110201102111} is an apocalyptic number.

20110201102111 is a deficient number, since it is larger than the sum of its proper divisors (884687903969).

20110201102111 is a wasteful number, since it uses less digits than its factorization.

20110201102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41286.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20110201102111 its reverse (11120110201102), we get a palindrome (31230311303213).

It can be divided in two parts, 20110201102 and 111, that multiplied together give a palindrome (2232232322322).

The spelling of 20110201102111 in words is "twenty trillion, one hundred ten billion, two hundred one million, one hundred two thousand, one hundred eleven".