212021010012020 has 48 divisors (see below), whose sum is σ = 492561998199936. Its totient is φ = 76012654032000.

The previous prime is 212021010011963. The next prime is 212021010012023. The reversal of 212021010012020 is 20210010120212.

It is a junction number, because it is equal to n+sod(n) for n = 212021010011986 and 212021010012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021010012023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6786828491 + ... + 6786859730.

It is an arithmetic number, because the mean of its divisors is an integer number (10261708295832).

Almost surely, 2^{212021010012020} is an apocalyptic number.

212021010012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021010012020 is an abundant number, since it is smaller than the sum of its proper divisors (280540988187916).

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

212021010012020 is a wasteful number, since it uses less digits than its factorization.

212021010012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13573688312 (or 13573688310 counting only the distinct ones).

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

Adding to 212021010012020 its reverse (20210010120212), we get a palindrome (232231020132232).

The spelling of 212021010012020 in words is "two hundred twelve trillion, twenty-one billion, ten million, twelve thousand, twenty".