20111022100101 has 16 divisors (see below), whose sum is σ = 26864745290240. Its totient is φ = 13382324383680.

The previous prime is 20111022100093. The next prime is 20111022100151. The reversal of 20111022100101 is 10100122011102.

It is not a de Polignac number, because 20111022100101 - 2³ = 20111022100093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111022100151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167220876 + ... + 167341098.

It is an arithmetic number, because the mean of its divisors is an integer number (1679046580640).

Almost surely, 2^{20111022100101} is an apocalyptic number.

It is an amenable number.

20111022100101 is a deficient number, since it is larger than the sum of its proper divisors (6753723190139).

20111022100101 is a wasteful number, since it uses less digits than its factorization.

20111022100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223836.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20111022100101 its reverse (10100122011102), we get a palindrome (30211144111203).

The spelling of 20111022100101 in words is "twenty trillion, one hundred eleven billion, twenty-two million, one hundred thousand, one hundred one".