12122020204220 has 24 divisors (see below), whose sum is σ = 26796044662800. Its totient is φ = 4593607656192.

The previous prime is 12122020204199. The next prime is 12122020204303. The reversal of 12122020204220 is 2240202022121.

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 = 12122020204192 and 12122020204201.

It is a congruent number.

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, 15950026205 + ... + 15950026964.

It is an arithmetic number, because the mean of its divisors is an integer number (1116501860950).

Almost surely, 2^{12122020204220} is an apocalyptic number.

12122020204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122020204220 is an abundant number, since it is smaller than the sum of its proper divisors (14674024458580).

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

12122020204220 is a wasteful number, since it uses less digits than its factorization.

12122020204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31900053197 (or 31900053195 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12122020204220 its reverse (2240202022121), we get a palindrome (14362222226341).

The spelling of 12122020204220 in words is "twelve trillion, one hundred twenty-two billion, twenty million, two hundred four thousand, two hundred twenty".