20000122111100 has 18 divisors (see below), whose sum is σ = 43400264981304. Its totient is φ = 8000048844400.

The previous prime is 20000122111069. The next prime is 20000122111103. The reversal of 20000122111100 is 111122100002.

It is a super-2 number, since 2×20000122111100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000122111103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100000610456 + ... + 100000610655.

Almost surely, 2^{20000122111100} is an apocalyptic number.

20000122111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000122111100 is an abundant number, since it is smaller than the sum of its proper divisors (23400142870204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20000122111100 is a wasteful number, since it uses less digits than its factorization.

20000122111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200001221125 (or 200001221118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20000122111100 its reverse (111122100002), we get a palindrome (20111244211102).

The spelling of 20000122111100 in words is "twenty trillion, one hundred twenty-two million, one hundred eleven thousand, one hundred".