20210120202012 has 96 divisors (see below), whose sum is σ = 53529611116800. Its totient is φ = 5883236623872.

The previous prime is 20210120202007. The next prime is 20210120202047. The reversal of 20210120202012 is 21020202101202.

It is a junction number, because it is equal to n+sod(n) for n = 20210120201982 and 20210120202000.

It is a congruent number.

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, 2422953 + ... + 6803744.

It is an arithmetic number, because the mean of its divisors is an integer number (557600115800).

Almost surely, 2^{20210120202012} is an apocalyptic number.

It is an amenable number.

20210120202012 is an abundant number, since it is smaller than the sum of its proper divisors (33319490914788).

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

20210120202012 is a wasteful number, since it uses less digits than its factorization.

20210120202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9227475 (or 9227473 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20210120202012 its reverse (21020202101202), we get a palindrome (41230322303214).

The spelling of 20210120202012 in words is "twenty trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, twelve".