12102002020 has 12 divisors (see below), whose sum is σ = 25414204284. Its totient is φ = 4840800800.

The previous prime is 12102002009. The next prime is 12102002047. The reversal of 12102002020 is 2020020121.

12102002020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7263130176 + 4838871844 = 85224^2 + 69562^2 .

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 = 12102001988 and 12102002006.

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 3 ways as a sum of consecutive naturals, for example, 302550031 + ... + 302550070.

It is an arithmetic number, because the mean of its divisors is an integer number (2117850357).

Almost surely, 2^12102002020 is an apocalyptic number.

12102002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102002020 is an abundant number, since it is smaller than the sum of its proper divisors (13312202264).

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

12102002020 is a wasteful number, since it uses less digits than its factorization.

12102002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605100110 (or 605100108 counting only the distinct ones).

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

Adding to 12102002020 its reverse (2020020121), we get a palindrome (14122022141).

The spelling of 12102002020 in words is "twelve billion, one hundred two million, two thousand, twenty".