20122011110121 has 16 divisors (see below), whose sum is σ = 27573169863360. Its totient is φ = 13045487837760.

The previous prime is 20122011110119. The next prime is 20122011110183. The reversal of 20122011110121 is 12101111022102.

It is a happy number.

It is not a de Polignac number, because 20122011110121 - 2¹ = 20122011110119 is a prime.

It is a super-2 number, since 2×20122011110121² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122011110121.

It is not an unprimeable number, because it can be changed into a prime (20122011110111) 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, 340548150 + ... + 340607231.

It is an arithmetic number, because the mean of its divisors is an integer number (1723323116460).

Almost surely, 2^{20122011110121} is an apocalyptic number.

It is an amenable number.

20122011110121 is a deficient number, since it is larger than the sum of its proper divisors (7451158753239).

20122011110121 is a wasteful number, since it uses less digits than its factorization.

20122011110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681155656.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20122011110121 its reverse (12101111022102), we get a palindrome (32223122132223).

The spelling of 20122011110121 in words is "twenty trillion, one hundred twenty-two billion, eleven million, one hundred ten thousand, one hundred twenty-one".