212221330002 has 96 divisors (see below), whose sum is σ = 508315481856. Its totient is φ = 63452354400.

The previous prime is 212221329973. The next prime is 212221330019. The reversal of 212221330002 is 200033122212.

212221330002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 13320013 + ... + 13335935.

It is an arithmetic number, because the mean of its divisors is an integer number (5294952936).

Almost surely, 2^212221330002 is an apocalyptic number.

212221330002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212221330002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254157740928).

212221330002 is an abundant number, since it is smaller than the sum of its proper divisors (296094151854).

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

212221330002 is a wasteful number, since it uses less digits than its factorization.

212221330002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16836 (or 16833 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212221330002 its reverse (200033122212), we get a palindrome (412254452214).

The spelling of 212221330002 in words is "two hundred twelve billion, two hundred twenty-one million, three hundred thirty thousand, two".