1012121202020 has 48 divisors (see below), whose sum is σ = 2184503247360. Its totient is φ = 393710838144.

The previous prime is 1012121202013. The next prime is 1012121202041. The reversal of 1012121202020 is 202021212101.

It is a junction number, because it is equal to n+sod(n) for n = 1012121201986 and 1012121202004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3281480 + ... + 3576639.

It is an arithmetic number, because the mean of its divisors is an integer number (45510484320).

Almost surely, 2^{1012121202020} is an apocalyptic number.

1012121202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012121202020 is an abundant number, since it is smaller than the sum of its proper divisors (1172382045340).

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

1012121202020 is a wasteful number, since it uses less digits than its factorization.

1012121202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6858332 (or 6858330 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1012121202020 its reverse (202021212101), we get a palindrome (1214142414121).

The spelling of 1012121202020 in words is "one trillion, twelve billion, one hundred twenty-one million, two hundred two thousand, twenty".