12011220122020 has 48 divisors (see below), whose sum is σ = 28827421354368. Its totient is φ = 4118062176000.

The previous prime is 12011220122017. The next prime is 12011220122123. The reversal of 12011220122020 is 2022102211021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12011220121985 and 12011220122003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7836919 + ... + 9243361.

It is an arithmetic number, because the mean of its divisors is an integer number (600571278216).

Almost surely, 2^{12011220122020} is an apocalyptic number.

12011220122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011220122020 is an abundant number, since it is smaller than the sum of its proper divisors (16816201232348).

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

12011220122020 is a wasteful number, since it uses less digits than its factorization.

12011220122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467460 (or 1467458 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12011220122020 its reverse (2022102211021), we get a palindrome (14033322333041).

The spelling of 12011220122020 in words is "twelve trillion, eleven billion, two hundred twenty million, one hundred twenty-two thousand, twenty".