12122122020 has 96 divisors (see below), whose sum is σ = 34314150528. Its totient is φ = 3197217792.

The previous prime is 12122121989. The next prime is 12122122049. The reversal of 12122122020 is 2022122121.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 5629264 + ... + 5631416.

It is an arithmetic number, because the mean of its divisors is an integer number (357439068).

Almost surely, 2^12122122020 is an apocalyptic number.

12122122020 is a gapful number since it is divisible by the number (10) 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 12122122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17157075264).

12122122020 is an abundant number, since it is smaller than the sum of its proper divisors (22192028508).

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

12122122020 is a wasteful number, since it uses less digits than its factorization.

12122122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12122122020 its reverse (2022122121), we get a palindrome (14144244141).

The spelling of 12122122020 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, twenty".