213021330222232 has 96 divisors (see below), whose sum is σ = 484861274892000. Its totient is φ = 87319290110976.

The previous prime is 213021330222227. The next prime is 213021330222307. The reversal of 213021330222232 is 232222033120312.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 213021330222232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126732448 + ... + 128402320.

It is an arithmetic number, because the mean of its divisors is an integer number (5050638280125).

Almost surely, 2^{213021330222232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213021330222232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242430637446000).

213021330222232 is an abundant number, since it is smaller than the sum of its proper divisors (271839944669768).

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

213021330222232 is a wasteful number, since it uses less digits than its factorization.

213021330222232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684065 (or 1684054 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213021330222232 its reverse (232222033120312), we get a palindrome (445243363342544).

The spelling of 213021330222232 in words is "two hundred thirteen trillion, twenty-one billion, three hundred thirty million, two hundred twenty-two thousand, two hundred thirty-two".