213221230330 has 16 divisors (see below), whose sum is σ = 384709856904. Its totient is φ = 85085904960.

The previous prime is 213221230303. The next prime is 213221230349. The reversal of 213221230330 is 33032122312.

It can be written as a sum of positive squares in 4 ways, for example, as 36622094161 + 176599136169 = 191369^2 + 420237^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25318977 + ... + 25327396.

Almost surely, 2^213221230330 is an apocalyptic number.

213221230330 is a deficient number, since it is larger than the sum of its proper divisors (171488626574).

213221230330 is a wasteful number, since it uses less digits than its factorization.

213221230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50646801.

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

Adding to 213221230330 its reverse (33032122312), we get a palindrome (246253352642).

The spelling of 213221230330 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred thirty thousand, three hundred thirty".