20122110220120 has 128 divisors (see below), whose sum is σ = 49246789484160. Its totient is φ = 7368666439680.

The previous prime is 20122110220087. The next prime is 20122110220151. The reversal of 20122110220120 is 2102201122102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20122110220094 and 20122110220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95427205 + ... + 95637835.

It is an arithmetic number, because the mean of its divisors is an integer number (384740542845).

Almost surely, 2^{20122110220120} is an apocalyptic number.

20122110220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20122110220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24623394742080).

20122110220120 is an abundant number, since it is smaller than the sum of its proper divisors (29124679264040).

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

20122110220120 is a wasteful number, since it uses less digits than its factorization.

20122110220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214493 (or 214489 counting only the distinct ones).

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

Adding to 20122110220120 its reverse (2102201122102), we get a palindrome (22224311342222).

The spelling of 20122110220120 in words is "twenty trillion, one hundred twenty-two billion, one hundred ten million, two hundred twenty thousand, one hundred twenty".