12000122020 has 12 divisors (see below), whose sum is σ = 25200256284. Its totient is φ = 4800048800.

The previous prime is 12000121981. The next prime is 12000122021. The reversal of 12000122020 is 2022100021.

It can be written as a sum of positive squares in 2 ways, for example, as 1397712996 + 10602409024 = 37386^2 + 102968^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12000121988 and 12000122006.

It is not an unprimeable number, because it can be changed into a prime (12000122021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300003031 + ... + 300003070.

It is an arithmetic number, because the mean of its divisors is an integer number (2100021357).

Almost surely, 2^12000122020 is an apocalyptic number.

12000122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000122020 is an abundant number, since it is smaller than the sum of its proper divisors (13200134264).

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

12000122020 is a wasteful number, since it uses less digits than its factorization.

12000122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600006110 (or 600006108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12000122020 its reverse (2022100021), we get a palindrome (14022222041).

The spelling of 12000122020 in words is "twelve billion, one hundred twenty-two thousand, twenty".