20122100311230 has 128 divisors (see below), whose sum is σ = 53948997181440. Its totient is φ = 5336896648320.

The previous prime is 20122100311163. The next prime is 20122100311231. The reversal of 20122100311230 is 3211300122102.

20122100311230 is a `hidden beast` number, since 2 + 0 + 1 + 22 + 100 + 311 + 230 = 666.

It is a super-2 number, since 2×20122100311230² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122100311231) 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 63 ways as a sum of consecutive naturals, for example, 338424184 + ... + 338483636.

It is an arithmetic number, because the mean of its divisors is an integer number (421476540480).

Almost surely, 2^{20122100311230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122100311230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26974498590720).

20122100311230 is an abundant number, since it is smaller than the sum of its proper divisors (33826896870210).

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

20122100311230 is a wasteful number, since it uses less digits than its factorization.

20122100311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66223 (or 66217 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20122100311230 its reverse (3211300122102), we get a palindrome (23333400433332).

The spelling of 20122100311230 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, three hundred eleven thousand, two hundred thirty".