12020002020020 has 24 divisors (see below), whose sum is σ = 25924220574504. Its totient is φ = 4678054839936.

The previous prime is 12020002019989. The next prime is 12020002020079. The reversal of 12020002020020 is 2002020002021.

It can be written as a sum of positive squares in 4 ways, for example, as 3274094826916 + 8745907193104 = 1809446^2 + 2957348^2 .

It is a super-2 number, since 2×12020002020020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020002019983 and 12020002020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8121622247 + ... + 8121623726.

It is an arithmetic number, because the mean of its divisors is an integer number (1080175857271).

Almost surely, 2^{12020002020020} is an apocalyptic number.

12020002020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020002020020 is an abundant number, since it is smaller than the sum of its proper divisors (13904218554484).

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

12020002020020 is a wasteful number, since it uses less digits than its factorization.

12020002020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16243246019 (or 16243246017 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 12020002020020 its reverse (2002020002021), we get a palindrome (14022022022041).

The spelling of 12020002020020 in words is "twelve trillion, twenty billion, two million, twenty thousand, twenty".