213221211331330 has 8 divisors (see below), whose sum is σ = 383798180396412. Its totient is φ = 85288484532528.

The previous prime is 213221211331273. The next prime is 213221211331333. The reversal of 213221211331330 is 33133112122312.

213221211331330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181750222101529 + 31470989229801 = 13481477^2 + 5609901^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (213221211331333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10661060566557 + ... + 10661060566576.

Almost surely, 2^{213221211331330} is an apocalyptic number.

213221211331330 is a deficient number, since it is larger than the sum of its proper divisors (170576969065082).

213221211331330 is a wasteful number, since it uses less digits than its factorization.

213221211331330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21322121133140.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 213221211331330 its reverse (33133112122312), we get a palindrome (246354323453642).

The spelling of 213221211331330 in words is "two hundred thirteen trillion, two hundred twenty-one billion, two hundred eleven million, three hundred thirty-one thousand, three hundred thirty".