12010122020 has 48 divisors (see below), whose sum is σ = 27303671808. Its totient is φ = 4411271040.

The previous prime is 12010121989. The next prime is 12010122023. The reversal of 12010122020 is 2022101021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12010121992 and 12010122010.

It is not an unprimeable number, because it can be changed into a prime (12010122023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71264 + ... + 170583.

It is an arithmetic number, because the mean of its divisors is an integer number (568826496).

Almost surely, 2^12010122020 is an apocalyptic number.

12010122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010122020 is an abundant number, since it is smaller than the sum of its proper divisors (15293549788).

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

12010122020 is a wasteful number, since it uses less digits than its factorization.

12010122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242060 (or 242058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12010122020 its reverse (2022101021), we get a palindrome (14032223041).

The spelling of 12010122020 in words is "twelve billion, ten million, one hundred twenty-two thousand, twenty".