212110320020 has 48 divisors (see below), whose sum is σ = 456238852608. Its totient is φ = 82789499520.

The previous prime is 212110319963. The next prime is 212110320049. The reversal of 212110320020 is 20023011212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212110319977 and 212110320004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757277 + ... + 998843.

It is an arithmetic number, because the mean of its divisors is an integer number (9504976096).

Almost surely, 2^212110320020 is an apocalyptic number.

212110320020 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 212110320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228119426304).

212110320020 is an abundant number, since it is smaller than the sum of its proper divisors (244128532588).

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

212110320020 is a wasteful number, since it uses less digits than its factorization.

212110320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242640 (or 242638 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212110320020 its reverse (20023011212), we get a palindrome (232133331232).

The spelling of 212110320020 in words is "two hundred twelve billion, one hundred ten million, three hundred twenty thousand, twenty".