212110200021020 has 24 divisors (see below), whose sum is σ = 509064480050784. Its totient is φ = 72723497150016.

The previous prime is 212110200020989. The next prime is 212110200021043. The reversal of 212110200021020 is 20120002011212.

It is a super-2 number, since 2×212110200021020² (a number of 29 digits) contains 22 as substring.

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 = 212110200020986 and 212110200021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757536428507 + ... + 757536428786.

It is an arithmetic number, because the mean of its divisors is an integer number (21211020002116).

Almost surely, 2^{212110200021020} is an apocalyptic number.

212110200021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110200021020 is an abundant number, since it is smaller than the sum of its proper divisors (296954280029764).

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

212110200021020 is a wasteful number, since it uses less digits than its factorization.

212110200021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515072857309 (or 1515072857307 counting only the distinct ones).

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

Adding to 212110200021020 its reverse (20120002011212), we get a palindrome (232230202032232).

The spelling of 212110200021020 in words is "two hundred twelve trillion, one hundred ten billion, two hundred million, twenty-one thousand, twenty".