212100010212020 has 144 divisors (see below), whose sum is σ = 522232141052160. Its totient is φ = 72144580435200.

The previous prime is 212100010212001. The next prime is 212100010212043. The reversal of 212100010212020 is 20212010001212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 212100010211986 and 212100010212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 459498101 + ... + 459959459.

It is an arithmetic number, because the mean of its divisors is an integer number (3626612090640).

Almost surely, 2^{212100010212020} is an apocalyptic number.

212100010212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212100010212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261116070526080).

212100010212020 is an abundant number, since it is smaller than the sum of its proper divisors (310132130840140).

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

212100010212020 is a wasteful number, since it uses less digits than its factorization.

212100010212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465094 (or 465085 counting only the distinct ones).

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

Adding to 212100010212020 its reverse (20212010001212), we get a palindrome (232312020213232).

The spelling of 212100010212020 in words is "two hundred twelve trillion, one hundred billion, ten million, two hundred twelve thousand, twenty".