212013332220 has 96 divisors (see below), whose sum is σ = 610027665408. Its totient is φ = 54977640192.

The previous prime is 212013332213. The next prime is 212013332221. The reversal of 212013332220 is 22233310212.

It is a happy number.

212013332220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013332221) 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, 4020867 + ... + 4073253.

It is an arithmetic number, because the mean of its divisors is an integer number (6354454848).

Almost surely, 2^212013332220 is an apocalyptic number.

212013332220 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 212013332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305013832704).

212013332220 is an abundant number, since it is smaller than the sum of its proper divisors (398014333188).

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

212013332220 is a wasteful number, since it uses less digits than its factorization.

212013332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54259 (or 54257 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212013332220 its reverse (22233310212), we get a palindrome (234246642432).

The spelling of 212013332220 in words is "two hundred twelve billion, thirteen million, three hundred thirty-two thousand, two hundred twenty".