212010112020020 has 24 divisors (see below), whose sum is σ = 445250883687624. Its totient is φ = 84798397485056.

The previous prime is 212010112020019. The next prime is 212010112020041. The reversal of 212010112020020 is 20020211010212.

It can be written as a sum of positive squares in 4 ways, for example, as 71767532151184 + 140242579868836 = 8471572^2 + 11842406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212010112019977 and 212010112020004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352649837 + ... + 353250516.

It is an arithmetic number, because the mean of its divisors is an integer number (18552120153651).

Almost surely, 2^{212010112020020} is an apocalyptic number.

212010112020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010112020020 is an abundant number, since it is smaller than the sum of its proper divisors (233240771667604).

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

212010112020020 is a wasteful number, since it uses less digits than its factorization.

212010112020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705915379 (or 705915377 counting only the distinct ones).

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

Adding to 212010112020020 its reverse (20020211010212), we get a palindrome (232030323030232).

The spelling of 212010112020020 in words is "two hundred twelve trillion, ten billion, one hundred twelve million, twenty thousand, twenty".