20010122110011 has 16 divisors (see below), whose sum is σ = 29782507328640. Its totient is φ = 11845315413120.

The previous prime is 20010122110009. The next prime is 20010122110037. The reversal of 20010122110011 is 11001122101002.

It is not a de Polignac number, because 20010122110011 - 2¹ = 20010122110009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20010122110061) 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, 7050781566 + ... + 7050784403.

It is an arithmetic number, because the mean of its divisors is an integer number (1861406708040).

Almost surely, 2^{20010122110011} is an apocalyptic number.

20010122110011 is a deficient number, since it is larger than the sum of its proper divisors (9772385218629).

20010122110011 is a wasteful number, since it uses less digits than its factorization.

20010122110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14101566026.

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

Adding to 20010122110011 its reverse (11001122101002), we get a palindrome (31011244211013).

Subtracting from 20010122110011 its reverse (11001122101002), we obtain a palindrome (9009000009009).

The spelling of 20010122110011 in words is "twenty trillion, ten billion, one hundred twenty-two million, one hundred ten thousand, eleven".