12101122020 has 96 divisors (see below), whose sum is σ = 38076095232. Its totient is φ = 2849223168.

The previous prime is 12101122003. The next prime is 12101122039. The reversal of 12101122020 is 2022110121.

12101122020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12101121987 and 12101122005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319327 + ... + 355206.

It is an arithmetic number, because the mean of its divisors is an integer number (396625992).

Almost surely, 2^12101122020 is an apocalyptic number.

12101122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101122020 is an abundant number, since it is smaller than the sum of its proper divisors (25974973212).

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

12101122020 is a wasteful number, since it uses less digits than its factorization.

12101122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674581 (or 674579 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12101122020 its reverse (2022110121), we get a palindrome (14123232141).

The spelling of 12101122020 in words is "twelve billion, one hundred one million, one hundred twenty-two thousand, twenty".