20122122122120 has 32 divisors (see below), whose sum is σ = 45741525039000. Its totient is φ = 7965871024128.

The previous prime is 20122122122119. The next prime is 20122122122147. The reversal of 20122122122120 is 2122122122102.

It can be written as a sum of positive squares in 4 ways, for example, as 15334069183876 + 4788052938244 = 3915874^2 + 2188162^2 .

It is a super-2 number, since 2×20122122122120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20122122122092 and 20122122122101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2593053095 + ... + 2593060854.

Almost surely, 2^{20122122122120} is an apocalyptic number.

20122122122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122122122120 is an abundant number, since it is smaller than the sum of its proper divisors (25619402916880).

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

20122122122120 is a wasteful number, since it uses less digits than its factorization.

20122122122120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186114057 (or 5186114053 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20122122122120 its reverse (2122122122102), we get a palindrome (22244244244222).

The spelling of 20122122122120 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty".