12122121022020 has 96 divisors (see below), whose sum is σ = 39698174140800. Its totient is φ = 3062430571392.

The previous prime is 12122121021979. The next prime is 12122121022027. The reversal of 12122121022020 is 2022012122121.

It is a happy number.

12122121022020 is a `hidden beast` number, since 1 + 212 + 2 + 1 + 210 + 220 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12122121021984 and 12122121022002.

It is not an unprimeable number, because it can be changed into a prime (12122121022027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 590736379 + ... + 590756898.

It is an arithmetic number, because the mean of its divisors is an integer number (413522647300).

Almost surely, 2^{12122121022020} is an apocalyptic number.

12122121022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122121022020 is an abundant number, since it is smaller than the sum of its proper divisors (27576053118780).

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

12122121022020 is a wasteful number, since it uses less digits than its factorization.

12122121022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181493314 (or 1181493306 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12122121022020 its reverse (2022012122121), we get a palindrome (14144133144141).

The spelling of 12122121022020 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, twenty".