12122211222020 has 24 divisors (see below), whose sum is σ = 25503182242944. Its totient is φ = 4840019978976.

The previous prime is 12122211221999. The next prime is 12122211222053. The reversal of 12122211222020 is 2022211222121.

It is a super-2 number, since 2×12122211222020² (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 = 12122211221983 and 12122211222001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554020652 + ... + 554042531.

It is an arithmetic number, because the mean of its divisors is an integer number (1062632593456).

Almost surely, 2^{12122211222020} is an apocalyptic number.

12122211222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122211222020 is an abundant number, since it is smaller than the sum of its proper divisors (13380971020924).

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

12122211222020 is a wasteful number, since it uses less digits than its factorization.

12122211222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108063739 (or 1108063737 counting only the distinct ones).

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

Adding to 12122211222020 its reverse (2022211222121), we get a palindrome (14144422444141).

The spelling of 12122211222020 in words is "twelve trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, twenty".