212103333220 has 96 divisors (see below), whose sum is σ = 475242768000. Its totient is φ = 79238891520.

The previous prime is 212103333187. The next prime is 212103333223. The reversal of 212103333220 is 22333301212.

It is a junction number, because it is equal to n+sod(n) for n = 212103333191 and 212103333200.

It is not an unprimeable number, because it can be changed into a prime (212103333223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30705007 + ... + 30711913.

It is an arithmetic number, because the mean of its divisors is an integer number (4950445500).

Almost surely, 2^212103333220 is an apocalyptic number.

212103333220 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 212103333220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237621384000).

212103333220 is an abundant number, since it is smaller than the sum of its proper divisors (263139434780).

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

212103333220 is a wasteful number, since it uses less digits than its factorization.

212103333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613 (or 7611 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 212103333220 its reverse (22333301212), we get a palindrome (234436634432).

The spelling of 212103333220 in words is "two hundred twelve billion, one hundred three million, three hundred thirty-three thousand, two hundred twenty".