20122112010220 has 96 divisors (see below), whose sum is σ = 49109018950656. Its totient is φ = 6844462156800.

The previous prime is 20122112010199. The next prime is 20122112010229. The reversal of 20122112010220 is 2201021122102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20122112010194 and 20122112010203.

It is not an unprimeable number, because it can be changed into a prime (20122112010229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15894196 + ... + 17113435.

It is an arithmetic number, because the mean of its divisors is an integer number (511552280736).

Almost surely, 2^{20122112010220} is an apocalyptic number.

20122112010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122112010220 is an abundant number, since it is smaller than the sum of its proper divisors (28986906940436).

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

20122112010220 is a wasteful number, since it uses less digits than its factorization.

20122112010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33007831 (or 33007829 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20122112010220 its reverse (2201021122102), we get a palindrome (22323133132322).

The spelling of 20122112010220 in words is "twenty trillion, one hundred twenty-two billion, one hundred twelve million, ten thousand, two hundred twenty".